MicroTap
payment-ready until 2026-11-22
20 monetized HTTP APIs on the x402 protocol · prediction markets (Polymarket, Kalshi), DeFi/crypto data, multi-chain on-chain reads, live weather, real-time web search, and cross-platform prediction-market divergence signals.
Compare: all web search APIs · all blockchain APIs · all weather APIs
Call it x402 v2
x402 v2
- Base URL
- https://x402tap.com
- Payment
- x402 v2, header channel
$ curl -i 'https://x402tap.com/api/crypto-market' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 20 paid routes on x402tap.com
GET/api/crypto-market Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/crypto-price Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/crypto-trending Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/defi-chains Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/defi-tvl Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/ens-resolve Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/gas-price Arbitrum One+Base+Pol+Sol $0.01since 08-25
GET/api/generate Base$0.05since 08-17
12 more in Example 402 response
Prices as captured in the 402 response: median $0.01 across the 20 endpoints.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| GET | / | Rich market data for one or more cryptocurrencies: rank, 24h high/low, volume, ATH, and more | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Look up current price, 24h change, and market cap for one or more cryptocurrencies | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Get the top trending cryptocurrencies right now, ranked by search interest | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Rank blockchains by total DeFi value locked (TVL) across all protocols | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Look up a DeFi protocol's current total value locked (TVL), by chain, plus market cap | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism) | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Real LLM-backed text generation (Gemini), billed by output length (max $0.05/request) | $0.05 | Base | USDC | header | since 08-17 |
| GET | / | Trend insights for a topic, based on real Wikipedia page-view volume and momentum. Premium tier adds relatedTrends: other Wikipedia article titles matching the same search terms (title-similarity, not a curated semantic-relevance ranking). Not literal search/social trend data · see the response's `source` field. | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-17 |
| GET | / | Get full detail (yes/no prices, volume, status, result) for a single Kalshi market by ticker | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Search or list open Kalshi prediction markets (regulated US event contracts) | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Heartbeat endpoint billed via a batch-settlement payment channel | $0.001 | Base | USDC | header | since 08-17 |
| GET | / | Get full detail (prices, volume, liquidity, resolution) for a single Polymarket market by slug | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Search or list active Polymarket prediction markets, ranked by 24h volume | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Find prediction-market questions priced differently on Polymarket vs. Kalshi · a cross-platform divergence signal built from data no single-platform competitor has | $0.05 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) · eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism) | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Live current weather conditions for any city, sourced from Open-Meteo | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-17 |
| GET | / | Real-time web search (via Exa) · ranked results with title, URL, published date, author, and relevance score for a query | $0.015 | Arbitrum One+ | USDC, USD Coin | header | since 08-25 |
| GET | / | Premium content | $0.01 | Arbitrum One+ | USDC, USD Coin | header | since 08-17 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 20 payloads captured by the monitor.
214 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 3600,
"receiverAuthorizer": "0xFA9dFa6C94285bdb52aDeFF9d88CC7882911a02b"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "1000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/ping",
"tags": [
"heartbeat",
"monitoring",
"micropayments",
"batch-settlement"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Heartbeat endpoint billed via a batch-settlement payment channel",
"serviceName": "x402 Heartbeat"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"ts": 1700000000000,
"pong": true
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/ping"
},
"signature": "0x7513756e128d4a8d57ec32fd7b2c0328eb0f548bbc8601b4d18cad3b52488a482eecc160242aac4d0b4fd3def9c405e2d3c4d14faccf55ea10e340351258eef41c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "1000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/ping"
},
"signature": "0xe55abcf3eff7085d792b67baeb72f19678ba2e23b809631b93c7360aafe7880c2b8a159280ccd3d30691eafbc45c15b4faeb1ff63e36d4d2ef0d4403334000d81c",
"acceptIndex": 1
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (19)
Captured payload 2 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/crypto-price",
"tags": [
"crypto",
"price",
"finance",
"market-data"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Look up current price, 24h change, and market cap for one or more cryptocurrencies",
"serviceName": "x402 Crypto Price Lookup"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"vs": "usd",
"ids": "bitcoin,ethereum,solana"
}
},
"output": {
"type": "json",
"example": {
"vs": "usd",
"prices": [
{
"id": "bitcoin",
"price": 63151,
"marketCap": 1267177736333,
"change24hPct": -0.2
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"ids"
],
"properties": {
"vs": {
"type": "string",
"description": "Quote currency, e.g. \"usd\", \"eur\" (default usd)"
},
"ids": {
"type": "string",
"description": "Comma-separated CoinGecko coin ids, e.g. \"bitcoin,ethereum\""
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/crypto-price"
},
"signature": "0xc2149a976133c5a7c6fbd66e13e40dd7c647b1195a6aabe425ceaa0b771023391ecb49a347b1c09ddd26eb5c0ac9de16dd7883d624d48dae81e498d15628099b1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/crypto-price"
},
"signature": "0x0817b91a79c98d849eca00316d608d0df300d1333bf1f9744dffb9254d1ed2e5186bd1f5276d721f04be638eb7c140ef1d92b33a93f32bc70e0a2900140c172f1b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/crypto-price"
},
"signature": "0x96523bc74b288a030c711246d3598eba49839ffb683ecfa747b4302086d805451b2d1c706aadcb75b980cc1b91ea8ebae2e29e53583f301188ae62886c7290c81b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/crypto-price"
},
"signature": "0xa5b1988ca8e1b789eb399f428ea4799be962a44d80d0bb449d116d8d714e55e412fa68f9d8756d79d7646a620d56cdb86772af8303ff78df4242df880d9550001b",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/insights",
"tags": [
"insights",
"trends",
"analytics",
"data",
"tiered-pricing",
"wikipedia"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Trend insights for a topic, based on real Wikipedia page-view volume and momentum. Premium tier adds relatedTrends: other Wikipedia article titles matching the same search terms (title-similarity, not a curated semantic-relevance ranking). Not literal search/social trend data — see the response's `source` field.",
"serviceName": "x402 Trend Insights"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"tier": "premium",
"topic": "bitcoin"
}
},
"output": {
"type": "json",
"example": {
"tier": "premium",
"score": 62,
"topic": "bitcoin",
"source": "Wikipedia pageviews for \"Bitcoin\"",
"momentum": "-8% WoW",
"relatedTrends": [
"Bitcoin protocol",
"Bitcoin in El Salvador",
"Bitcoin Cash"
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"topic"
],
"properties": {
"tier": {
"enum": [
"standard",
"premium"
],
"type": "string",
"description": "standard = $0.01, premium = $0.025"
},
"topic": {
"type": "string",
"description": "Topic to fetch trend insights for"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/insights"
},
"signature": "0x20bae659d4b80c80d2c807de3d77da979f8fcd2e988635919d28741fc09b406b6337635ba639f65955f53b85f154e50e8cd1d83eb2b0e4b8a9a9064205a659e91c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/insights"
},
"signature": "0x4e36cbf9fe0df4a7dd3ae38e59324700d1bb37429ebdb4ef687f964c015bf4131c4b4ac56568175794299d59f2309e9fe36594dfb672f5fefee3056bae428a8d1c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/insights"
},
"signature": "0xac4eeef5fc0aee2fd2cc966df375ff90b153de0ec181f39fe06f06f6bdecd00a1955d62643b56a6b085a40b585ca015c05dd3e296c25cefe2ababaa12fd023301c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/insights"
},
"signature": "0xd237370b7f49f016962c287e3598bd894489fef9a9bde8852c0d74f9db24bd70771c0badac907388e1e18437242cb5253a054daef688a6cf414be0de5129b3421c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/rpc",
"tags": [
"rpc",
"ethereum",
"on-chain",
"blockchain",
"infrastructure"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more",
"serviceName": "x402 Multi-Chain RPC"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"method": "eth_getBalance",
"params": "[\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\",\"latest\"]"
}
},
"output": {
"type": "json",
"example": {
"chain": "Base",
"method": "eth_blockNumber",
"result": "0x1234567"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"method"
],
"properties": {
"chain": {
"type": "string",
"description": "Chain to query: base, ethereum, polygon, arbitrum, optimism (default base)"
},
"method": {
"type": "string",
"description": "Read-only JSON-RPC method name, e.g. eth_getBalance, eth_call, eth_blockNumber"
},
"params": {
"type": "string",
"description": "JSON-encoded array of RPC params, e.g. [\"0xabc...\",\"latest\"] (default [])"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/rpc"
},
"signature": "0x7927f961e9415137410a12aff73018d820f9de8a7c22f9432ebec8d2d2ed14b436f0102ca7e888108a2f410978715ea715ead0a87e1e9a540d9da69ea79e26721c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/rpc"
},
"signature": "0x5cdbdc4cecdb302279eaa71889ec83a594ad04c5c31832f5136ab1583d4808dd3560a352e16d49d784b308801835b75616db19ce4c777209449d7e9e339759be1c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/rpc"
},
"signature": "0xb0fce7634cc752402a1d9c60af0e7ac68675fddbd95253d291deb0e18901e5dd268ee76f124f770a041875060562d3da42063b01eed18744fe57cb5ecff307621b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/rpc"
},
"signature": "0xc0f351ba9b6c076d69e8a86798805245720581f991e159423be87ef6b60475842c328d8df2fef33daf6c9f2b1e12b37b74b06e19973c62daac45bc80017336ca1b",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/polymarket-market",
"tags": [
"prediction-markets",
"polymarket",
"crypto",
"finance",
"trading"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Get full detail (prices, volume, liquidity, resolution) for a single Polymarket market by slug",
"serviceName": "x402 Polymarket Market Detail"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"slug": "xi-jinping-out-before-2027"
}
},
"output": {
"type": "json",
"example": {
"slug": "xi-jinping-out-before-2027",
"active": true,
"closed": false,
"endDate": "2026-12-31T00:00:00Z",
"outcomes": [
"Yes",
"No"
],
"question": "Xi Jinping out before 2027?",
"liquidity": 233436.44,
"volume1wk": 122625.33,
"volume24hr": 23665.67,
"description": "This market will resolve to \"Yes\" if...",
"volumeTotal": 12084934.95,
"outcomePrices": [
0.0445,
0.9555
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"slug"
],
"properties": {
"slug": {
"type": "string",
"description": "Polymarket market slug (from the URL or /api/polymarket-markets)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/polymarket-market"
},
"signature": "0xf3f898dd2c9cb1745e278682be1c18881ac483076cf15db34469b5deeb39f3f314f429be4a6afa6149341ab8493190ad36933c4f34b147baefbf35eec09c39291b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/polymarket-market"
},
"signature": "0x9796b41135077dcd0a2a2278616bea84cf4dd12bdee600e49da4ce1159fb455c31719934feda3678e647239784ac8a1990f2f8f6774c2c354cf4a38d4dff6cff1c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/polymarket-market"
},
"signature": "0xe490f46c4139edda5574c38dc307285dac04efcee7619a53a4739a31b2eccd82369f9e3fb43d285f03828dafa829f583849660d41537f95c33fbce686db1a9da1b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777274,
"resourceUrl": "https://x402tap.com/api/polymarket-market"
},
"signature": "0x09081b972d6b563b628926d67b6785bab4e69495d0fba27795b562d2834160773cc581dbc30cbadd70a84071820c1571bc9c0491b6116694eff03847db94a10c1c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/protected",
"tags": [
"demo",
"content"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "text/html",
"description": "Premium content",
"serviceName": "x402 Protected Content"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"message": "Payment verified — protected HTML content unlocked."
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/protected"
},
"signature": "0xca8d727b1c12c5261db09762e8d0fb0816588178c088f9387d2ed1869aec68e9480d305f34d58cb2fcd95b82605fa6e9d9985ad9c81d2efb485f1c98134e399f1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/protected"
},
"signature": "0xa83b3da08bd50d15f38dbebab27546a1ddbebf7419f39d7106b8bcc8599ed3046c607c09fb1b87d558e64639c19f2214994380847af63a4257bbebb168dd65601c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/protected"
},
"signature": "0x0b9c51e8c72a8cb4d3726801bc5b954ea3e04e2a94fbe31fcfda5487bc00b5680119be629fea4b12371e854cc6bdc1b8ff436b5dab8e718dffed7930166b756b1b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/protected"
},
"signature": "0xd91b3b963e35035483d8466b7878ceef8ada26ba055391e932ae26ea63bf56ef1e86b6b8d0ee192d67b640bcd7cd4a2764fc25420bc58a7e42846732e98a39b71c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"facilitatorAddress": "0x772003A2E9c2cCC8af956870a37A66F64F8CEC38",
"assetTransferMethod": "permit2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "upto",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/generate",
"tags": [
"ai",
"text-generation",
"llm",
"content",
"usage-based"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Real LLM-backed text generation (Gemini), billed by output length (max $0.05/request)",
"serviceName": "x402 Text Generator"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"prompt": "tell me something interesting"
}
},
"output": {
"type": "json",
"example": {
"text": "Octopuses have three hearts and blue, copper-based blood instead of iron-based hemoglobin.",
"prompt": "tell me something interesting",
"billedCharacters": 92
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"prompt"
],
"properties": {
"prompt": {
"type": "string",
"description": "Text prompt to generate a response for"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "upto",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/generate"
},
"signature": "0x87575b8d76811922501dcf4f94b9a651d91d5f120af6418baf80e157a834df153d10f23a5f9ff7d3a564da55c997ac6bc681497b80402c8a0b24a5da2e35e68d1b",
"acceptIndex": 0
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 8 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/wallet-balance",
"tags": [
"wallet",
"balance",
"ethereum",
"on-chain",
"blockchain",
"erc20"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)",
"serviceName": "x402 Wallet Balance Lookup"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
}
},
"output": {
"type": "json",
"example": {
"chain": "Base",
"token": {
"symbol": "USDC",
"address": "0x8335...",
"balance": "500.0",
"decimals": 6
},
"native": {
"symbol": "ETH",
"balance": "1.24031"
},
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "Chain to query: base, ethereum, polygon, arbitrum, optimism (default base)"
},
"token": {
"type": "string",
"description": "Optional ERC-20 token contract address to also check"
},
"address": {
"type": "string",
"description": "EVM wallet address (0x...)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/wallet-balance"
},
"signature": "0x893daf92fa13457a8f541e5d640e2357db2791f51e7934ea623a4c511818096665262f3ff26448d14fd0d73e80ea3108f9930e921f8b8fd68219db87dd48e6dc1c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/wallet-balance"
},
"signature": "0xc7caad81ceb29574d238a37009d8dc4a3fb5b7fe81abbc1caf1debc0bad35ccd25ece7d4d9375d29b342b59c266df8cced1008b5cd9b26f0d6020e2a17651b791c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/wallet-balance"
},
"signature": "0x4162e140bf17e9c5d81484d7fe13a2c2a8effbc18d8c0ccfcf04a74917060e1e6f1efcbd8a28f35f731f01945c188255490d1eed460817c8b57f97ca64ae18f61c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/wallet-balance"
},
"signature": "0xc61a222b2567645eef9f7de4be757021bf94a8c724a0811cca35be03b3ea8669011952f105194392ce9ce4c8a0638b8455fa4e986b76b94ff8dbdca232a0de781c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "15000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "15000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "15000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "15000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/web-search",
"tags": [
"search",
"web-search",
"data",
"ai"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Real-time web search (via Exa) — ranked results with title, URL, published date, author, and relevance score for a query",
"serviceName": "x402 Web Search"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "Base blockchain"
}
},
"output": {
"type": "json",
"example": {
"query": "Base blockchain",
"results": [
{
"url": "https://en.wikipedia.org/wiki/Base_(blockchain)",
"score": 0.87,
"title": "Base (blockchain) - Wikipedia",
"author": null,
"publishedDate": "2023-08-09"
}
],
"autopromptString": null
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Search query"
},
"numResults": {
"type": "integer",
"description": "Number of results to return (1-10, default 5)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "15000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/web-search"
},
"signature": "0xb926a455e37ed24a9b4a5b6caafb6995c33959151d6257959d025b9a7266a5cf31ceeaabe86173ca50c741168bfe6c74c2901ca96d16cb3555c28f7b9d3df4451b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "15000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/web-search"
},
"signature": "0xfccea13bba744e23788e9955f6ae2c19cc3e83cd05fdf7cab953f8ae8be2e46a0ca1fb74a2f1b7be3a82c2e29387e7d917b09be335a45572f5fdfe0679b8873d1b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "15000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/web-search"
},
"signature": "0x2286f3f08d0cbdede7a9a1d026d3ceb08e16f503226367027b945bf879e7186f13e971e96109982e68bd2941e0d3fd937bb6076a3121b54979ff3a8347cbfc261c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "15000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777275,
"resourceUrl": "https://x402tap.com/api/web-search"
},
"signature": "0x1ee7e9a8e387605a24c066f50bad7ad59169aa344a6d5ec197f4a0e92aa8ba3f16d76e2a894d5e4045d578b196e5cce5fd9f9fbaf2062241d7fa18f572d5b5fa1c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 10 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/prediction-arb",
"tags": [
"prediction-markets",
"polymarket",
"kalshi",
"arbitrage",
"crypto",
"finance",
"trading"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Find prediction-market questions priced differently on Polymarket vs. Kalshi — a cross-platform divergence signal built from data no single-platform competitor has",
"serviceName": "x402 Prediction Market Divergence"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": "5",
"minDivergencePct": "10"
}
},
"output": {
"type": "json",
"example": {
"note": "Matches are found by keyword-overlap similarity...",
"count": 1,
"query": null,
"matches": [
{
"kalshi": {
"title": "Fed cuts rates at September FOMC meeting?",
"ticker": "KXFED-99",
"subTitle": null,
"yesProbability": 0.496
},
"matchScore": 0.5,
"polymarket": {
"slug": "example-market",
"question": "Will the Fed cut rates in September?",
"volume24hr": 45678.9,
"yesProbability": 0.62
},
"cheaperYesOn": "kalshi",
"divergencePct": 12.4
}
],
"minDivergencePct": 10
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Optional keyword filter on the matched question text"
},
"limit": {
"type": "string",
"description": "Max matches to return, 1-25 (default 10)"
},
"minDivergencePct": {
"type": "string",
"description": "Minimum probability-point divergence to include, 0-100 (default 5)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777276,
"resourceUrl": "https://x402tap.com/api/prediction-arb"
},
"signature": "0x8c9bdaf2d62e0e259445eeb5fe44ccc81240d88f728467ddfd3fb07a1afc0eaf6fe6ca524af3567fb6df8d7bcf3fe0b3fe03217d8fdae3dea66486f4365c403f1c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777276,
"resourceUrl": "https://x402tap.com/api/prediction-arb"
},
"signature": "0xddb9901ecbbc43cfa9bf381e80e8b2bf8f2b617d67581793607f7865d87b948a2430941de355a95cfe65e4a41765609029f523cb2074fd92a8ba2b459b259c621c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "50000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777276,
"resourceUrl": "https://x402tap.com/api/prediction-arb"
},
"signature": "0x04e761cf243fa1157515ffe9776c8cdc7ca6cfce4ff4a136919dc19f382f1fc87181110fe7466deb4bcb218980e2edf9b9e7891bd8f25eb9c2fe3edd5028bc111c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777276,
"resourceUrl": "https://x402tap.com/api/prediction-arb"
},
"signature": "0x008ac80ed3beb59085643dc42908b95a4bd01051025e91f2e56c68cad943b60d69fbeac8437f0f8eed9b53a11461f99e9bab159f1d93c07ac33983055eb588441b",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 11 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/kalshi-market",
"tags": [
"prediction-markets",
"kalshi",
"finance",
"trading",
"events"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Get full detail (yes/no prices, volume, status, result) for a single Kalshi market by ticker",
"serviceName": "x402 Kalshi Market Detail"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ticker": "KXELONMARS-99"
}
},
"output": {
"type": "json",
"example": {
"noAsk": 0.9,
"noBid": 0.88,
"title": "Will Elon Musk visit Mars before Aug 1, 2099?",
"result": null,
"status": "active",
"ticker": "KXELONMARS-99",
"volume": 117134.08,
"yesAsk": 0.12,
"yesBid": 0.1,
"openTime": "2025-08-28T20:45:00Z",
"closeTime": "2099-08-01T04:59:00Z",
"lastPrice": 0.12,
"liquidity": 0,
"volume24h": 174.62,
"noSubTitle": "Mars",
"eventTicker": "KXELONMARS-99",
"yesSubTitle": null
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"ticker"
],
"properties": {
"ticker": {
"type": "string",
"description": "Kalshi market ticker (from /api/kalshi-markets)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-market"
},
"signature": "0x0d49bf3de643d80e1d211d2f07975d741abe40761763aa3eaf3621f6888e426e5c3faf7cc47d82eea7b382451035821d0e82f2fdfab1f2ac138789f925e18ffb1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-market"
},
"signature": "0x4e6999a7d72e82d4c93afde9efbe31c4d095c0c6f5e8a7e02cd1201d3fddb78d14ce188af0a8e3db78f36fbfb8bb872ca51d84620633143d847a23b49b1776e81c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-market"
},
"signature": "0x46ef61afb1704a51637dcd0df20388d774660b2484822121b281915ed839e6110adadd81d73cd11206fe5351c49de5b4437c21359e7134eb02e28986bcc526521c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-market"
},
"signature": "0xc7585b81416aed7e0e0fa0da279148b175544077b737bffeea9c9bc1c7255dbd6bd987d4fa848d25368cc9db7ed680877824060200beecf021f44ee19b82f5ca1c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 12 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/defi-chains",
"tags": [
"defi",
"crypto",
"tvl",
"finance",
"on-chain",
"blockchain"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Rank blockchains by total DeFi value locked (TVL) across all protocols",
"serviceName": "x402 DeFi Chain TVL Ranking"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": "5"
}
},
"output": {
"type": "json",
"example": {
"count": 2,
"chains": [
{
"rank": 1,
"chain": "Ethereum",
"tvlUsd": 65000000000,
"tokenSymbol": "ETH"
},
{
"rank": 2,
"chain": "Solana",
"tvlUsd": 8500000000,
"tokenSymbol": "SOL"
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"limit": {
"type": "string",
"description": "Number of top chains to return, 1-100 (default 15)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-chains"
},
"signature": "0x1899a8d8e5e66bb7ab15d09f3df1e90ae03a74564aab8b2f225983453e412d5c3bcbb1ffe430b14323c1c58a139bbcefb8eccb11fb7f8d9feffdb9fc0ae0aa3f1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-chains"
},
"signature": "0xed16b4684ff0db3fe4cc2826a033a953a8471b9ea81369758a92faeabf7fb50a6ea17156fc60ee3250d82ff3ec7feac50c18aceffd0817a41514baf26503da4e1c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-chains"
},
"signature": "0x0ba911d9a1871354f091b52d7e8ea4ff2763af51697073d05945b59e409531a6275fdd7827345dd05172e99b2f1c1e3d9b765201fdad253b5c895087eee77cac1c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-chains"
},
"signature": "0x865999366237d4b469171e54a114cb8f33a468e8d8cc4d68b1e4365fc1b2ccd02a850fbf4df41a327a05121be0f8c0efa0ec084d4cd1189f60d27abd4e26b7461b",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 13 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/crypto-market",
"tags": [
"crypto",
"market-data",
"finance",
"trading"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Rich market data for one or more cryptocurrencies: rank, 24h high/low, volume, ATH, and more",
"serviceName": "x402 Crypto Market Data"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"vs": "usd",
"ids": "bitcoin,ethereum"
}
},
"output": {
"type": "json",
"example": {
"vs": "usd",
"coins": [
{
"id": "bitcoin",
"name": "Bitcoin",
"rank": 1,
"price": 63151,
"low24h": 61890,
"symbol": "btc",
"high24h": 63980,
"athPrice": 108786,
"marketCap": 1267177736333,
"volume24h": 28123456789,
"athChangePct": -41.9,
"change24hPct": -0.2,
"circulatingSupply": 19780000
}
],
"count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"ids"
],
"properties": {
"vs": {
"type": "string",
"description": "Quote currency, e.g. \"usd\", \"eur\" (default usd)"
},
"ids": {
"type": "string",
"description": "Comma-separated CoinGecko coin ids, e.g. \"bitcoin,ethereum\""
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-market"
},
"signature": "0x8fd57bc813c4779c112b0cbb2ded504d4ca00d80fe5cd68116227878f5ae6bfa17e7262c640b725523bb5b6ab1d9bd7ef6a43757d1c3438bb42a3c950cf61f941c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-market"
},
"signature": "0x6751403a907bb17ac8c2cd634e9d039c6df0d2c46b15c4592d3623e440aa800e6b64f4b5338689b33595586677cb78f6602ffd1ba10389ab961f817a7c7ac0cf1b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-market"
},
"signature": "0x9bce8b98541ad4e937e502c89c9d8cb387b00af9362df5fad55e4ada258bde3a33d508e6c08c87a93941da40627efc466408e06d3b2db431c7cfbd67423c4c121b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-market"
},
"signature": "0x4a0cd318ae2e912168e5322a38e441015d0fb94d70cf10983969ca65251574f503a7e79ebcaae97f5fbb91b48a74afc212304d572f24bed2025eef8bbd04c0c71c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 14 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/weather",
"tags": [
"weather",
"forecast",
"api",
"data",
"live"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Live current weather conditions for any city, sourced from Open-Meteo",
"serviceName": "x402 Weather API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"city": "Austin"
}
},
"output": {
"type": "json",
"example": {
"report": {
"weather": "partly cloudy",
"windMph": 7,
"feelsLike": 94,
"temperature": 91,
"humidityPercent": 48
},
"source": "open-meteo.com",
"location": "Austin, Texas, United States",
"observedAt": "2026-08-15T12:00"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"city": {
"type": "string",
"description": "City name to fetch live current weather for (defaults to New York)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/weather"
},
"signature": "0x3efb8e4b4da5e89e961016b9b3b541592d0173441936a75bc7e85bf5be4426a042616ac0dfde0b480f8832ddcccf425868fbd182fd304406cddd1313526822521b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/weather"
},
"signature": "0x6f543608bd4ce0b8b6b609a390a82b174cf35826448c7a5b782bc33f1d2f825923d843dac13986875ac762765e6f149dc382c0bcf47e8c7899b55445b83eda041c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/weather"
},
"signature": "0xfa7026ff328f2fdaf85e094bc44432eb46362b1f3ca81e67b44795fcb11bd81a1391742dd1ca7ad4804c3f8431e74b20beb8031f16558439e238a728964b411c1b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/weather"
},
"signature": "0x5a58c0e29a8cafc1bb982b8e180fb9e8d131349ba3171fa5e50aeab9eb5c86e3205e70bc75842df2867da3af02cec6844da00f27237e1d3c2a2800c227e7d9e71c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 15 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/crypto-trending",
"tags": [
"crypto",
"trending",
"market-data",
"finance"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Get the top trending cryptocurrencies right now, ranked by search interest",
"serviceName": "x402 Crypto Trending"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"coins": [
{
"id": "pepe",
"name": "Pepe",
"symbol": "PEPE",
"priceUsd": 0.0000091,
"marketCap": "$3.8B",
"volume24h": "$412M",
"change24hPct": 5.3,
"marketCapRank": 28
}
],
"count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-trending"
},
"signature": "0xd303fe1149f45aa6a1192df4861c8511f9d6bd4973bcd604422349016eca6e1828bfffbca1d0e57f2a1bd4bbd0e9837dfe13fdbe880b6dcb9c4868e1a0e1da9d1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-trending"
},
"signature": "0x48d1dcf3264d12bd48921f97d59a1b860e05845b5f84050d9ff4a2ba6f2a68f860dfeb25c115b759010b9ad194385af86f256b82e5d5b8d8edc8b2bb5378dc3a1b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-trending"
},
"signature": "0x33d1ad7c46fcd7add40ee6e32186ffca17099b3a06b7252bbf37ec28c32e98b8064c856afc67e8ed915832826c44feaf6f316637a0d1c37784e7e9fbd2f787ac1c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/crypto-trending"
},
"signature": "0xd3cd4b1ee79217a4417316f9b4402217761de5164bedea81e5ff2f8d427c09460927594b464d2057b8e6c1f27c46db21bb8e8ace80a7adc430179ecb499828481c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 16 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/polymarket-markets",
"tags": [
"prediction-markets",
"polymarket",
"crypto",
"finance",
"trading"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Search or list active Polymarket prediction markets, ranked by 24h volume",
"serviceName": "x402 Polymarket Markets"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "election",
"limit": "5"
}
},
"output": {
"type": "json",
"example": {
"count": 1,
"query": "election",
"markets": [
{
"slug": "example-market",
"active": true,
"endDate": "2026-12-31T00:00:00Z",
"outcomes": [
"Yes",
"No"
],
"question": "Example prediction market?",
"liquidity": 45678.9,
"volume24hr": 12345.67,
"volumeTotal": 987654.32,
"outcomePrices": [
0.62,
0.38
]
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Optional keyword filter on the market question"
},
"limit": {
"type": "string",
"description": "Max markets to return, 1-50 (default 10)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/polymarket-markets"
},
"signature": "0xc3f27f4dcd05df6bbfaaa5ec54be164989b8cff0d583083de15320adc0e1d3b35a6ed2790e0c1755173677c1a7c5d5ece07dee4b255351368f0a9b868183988f1c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/polymarket-markets"
},
"signature": "0x557bf73f79328784b5f2e10a09e7987de6b9a20c48401a8285611de0f125328159435721a8dade390c0326df46c6825359741f010fcc4ccb93f9773ee1cd8b7c1b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/polymarket-markets"
},
"signature": "0x1902d60451b3f4fa28a7c8b494dfbb05818974342a7f165995329c09f97043097af17e90ce14b0eadbb55268d175952cd168d28e34d0013b3ebebe6e2bfa660d1c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/polymarket-markets"
},
"signature": "0x334ca69fd34e7366e6ddc4c349c2a45a943b470c18b45f0d4cff2dc4d3fbcad45172d5b85f0a5b5a7b777b601970251247c664bd29d0a3d3f7cf7fc78610b7801c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 17 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/gas-price",
"tags": [
"gas",
"ethereum",
"on-chain",
"blockchain",
"fees"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)",
"serviceName": "x402 Gas Price Oracle"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base"
}
},
"output": {
"type": "json",
"example": {
"chain": "Base",
"gasPriceGwei": 0.012,
"nativeSymbol": "ETH",
"maxFeePerGasGwei": 0.015,
"maxPriorityFeePerGasGwei": 0.001
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Chain to query: base, ethereum, polygon, arbitrum, optimism (default base)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/gas-price"
},
"signature": "0xac63caa7b6bc464f48809ce4fa30a1616de084c284242dbc0666841ba3a2001f6623bc375047fc2ddc27f5adb612cf5a6cbd7e9cd9ae7687d72358a1786884e51b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/gas-price"
},
"signature": "0x2e5c6d77ad2a5cb911a6cfd6e8cd70874673d58ddac9840d44c1b41cb8310f8a360e815bbe913f416a729026581667704cc8d18915aa3ba9ceffa2481d5f57e21b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/gas-price"
},
"signature": "0x9d057306a5afe6b937ae0ea0d1705b47ef6e971f81edb4936d7ff6dc4d1a2d82163eb92bed4da8bf09f621a52851c5e654202e3843eb06dcdc44c8b263ca49ab1b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/gas-price"
},
"signature": "0x0520b538f4c38c2b503d96d509a2acfdf65283798c22b780b973a1c4176ff4ce256d88a81502966d13810ebf24397e96e9debb04c69129d93a3ef47fee0fb0371c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 18 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/kalshi-markets",
"tags": [
"prediction-markets",
"kalshi",
"finance",
"trading",
"events"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Search or list open Kalshi prediction markets (regulated US event contracts)",
"serviceName": "x402 Kalshi Markets"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "fed rate",
"limit": "5"
}
},
"output": {
"type": "json",
"example": {
"count": 1,
"query": "fed rate",
"markets": [
{
"title": "Example Kalshi market?",
"status": "active",
"ticker": "KXEXAMPLE-99",
"yesAsk": 0.12,
"yesBid": 0.1,
"closeTime": "2099-08-01T04:59:00Z",
"lastPrice": 0.12,
"liquidity": 0,
"volume24h": 174.62,
"eventTicker": "KXEXAMPLE-99"
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Optional keyword filter on the market title"
},
"limit": {
"type": "string",
"description": "Max markets to return, 1-50 (default 10)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-markets"
},
"signature": "0x42e78349391f97ea601700400d61207c91d2865d342514807ce698f953e239934675fe7aff7a0957a5e1bee6af293218b85a93c63374ccfe96a88b9cfceddf0d1b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-markets"
},
"signature": "0xc69e1d4e6d56cd0ab1a7d862333828f3abf1de819247f54e65b14503104d47a752f2c55e08eb7d1923179b8ee69ce373d5850daa9d9c5e3db4b44ac9c579d9101c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-markets"
},
"signature": "0x9239f07bd0b5229aa9220bb181db0ef72fe50de9694c8e48c6c45849f7644bfd57be29f2fb72b0991390f2e84b539e0a775ac91e072bc7417ce25be4d5e7f6d51b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/kalshi-markets"
},
"signature": "0xbcacee2d1e6545e1c2e7d8bb0dcc49cff399cd5203b4d17c54147f2f98f902c36d5ab213ce64878a55b45291238581df6e8c0094530fa40acbb95ad52ae232241c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 19 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/defi-tvl",
"tags": [
"defi",
"crypto",
"tvl",
"finance",
"on-chain"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Look up a DeFi protocol's current total value locked (TVL), by chain, plus market cap",
"serviceName": "x402 DeFi Protocol TVL"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"protocol": "uniswap"
}
},
"output": {
"type": "json",
"example": {
"url": "https://uniswap.org/",
"asOf": "2026-08-16T00:00:00.000Z",
"name": "Uniswap",
"chains": [
"Ethereum",
"Base",
"Arbitrum"
],
"symbol": "UNI",
"tvlUsd": 2922032778,
"tvlByChain": {
"Base": 400000000,
"Ethereum": 1800000000
},
"marketCapUsd": 5200000000
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"protocol"
],
"properties": {
"protocol": {
"type": "string",
"description": "DefiLlama protocol slug, e.g. \"uniswap\", \"aave\""
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-tvl"
},
"signature": "0x9f0684cc65ddae52fbf81f52df11e1b1460a204edfa654dae1ae0690f84808cf02cfd5120e0eacd72d09852778a28cc7dc09f941ae42198eb36e33e8b149c1d21c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-tvl"
},
"signature": "0x7709f81500c4f86615b64e3a9bcaf5701f696d2a9987305bff6f98ce8aa125877b6ba64fc77e7a4f8117acaea7247d0678e1da895b92580fe9abf4d0299115981b",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-tvl"
},
"signature": "0x59c313122fe96d2f4b6cdcba3c046a913ea1895745598754d5286f03402068f2515c33afddf0e2433746eee721f3f78bb439eaecdd799d1f0464c4992a234d431b",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/defi-tvl"
},
"signature": "0x964480873f34f661938826ae51526a5f9214d4d412601ba44e7dc930e81b94fa7804ecaa0d11f03fb5fe06736687a42a60a2eb6881f84a8d389b439473d93cb91c",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 20 of 20
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402tap.com/api/ens-resolve",
"tags": [
"ens",
"ethereum",
"on-chain",
"identity",
"domains"
],
"iconUrl": "https://x402tap.com/icon.png",
"mimeType": "application/json",
"description": "Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name",
"serviceName": "x402 ENS Resolver"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "vitalik.eth"
}
},
"output": {
"type": "json",
"example": {
"name": "vitalik.eth",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "ENS name to resolve, e.g. \"vitalik.eth\""
},
"address": {
"type": "string",
"description": "EVM address to reverse-resolve to its primary ENS name"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/ens-resolve"
},
"signature": "0x8cb56bf6b75c7387d21b9c10ea72521d9b83e3211a3b322ea5f1f283237e100c255baaaf6a1d542d871cb65de6fdafaf0a236ae673e0782af011984ea30569b81b",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/ens-resolve"
},
"signature": "0x1ffea964a4fb5ece7a723bab141a663d658306f07a729a47a4e53df912d4d7f55b8f1df4b9754da2e2ebd94c2c121e2b52471d10ed43fcd70a4106bbeb369ec91c",
"acceptIndex": 1
},
{
"format": "eip712",
"payload": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/ens-resolve"
},
"signature": "0x274ebabb46684ef3bf0d035bdacac0079e19baf92e08deb28b9676b723412759590e5fcb798b8e9333053db11905cf0992c27060095516c93b58026ae98ec1d01c",
"acceptIndex": 2
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1794777277,
"resourceUrl": "https://x402tap.com/api/ens-resolve"
},
"signature": "0x6dc92a00f743f75d73f562cd09e45ba39215a897c30d17d1f9313f487c889c27483cfd04ee1784c472166cb2820f246c415e7ebc051347b547c666f366d16a2f1b",
"acceptIndex": 3
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
88/100 Solid
#119 of 497 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime 30d
- Compliance
- A 14/14 checks pass
- Price
- $0.001 to $0.05 p9 in Data
- Risk
- clean no risk flag
- Traction
- $1.77 30d 59 buyers, top buyer 29% (address, not entity)
- Last change
- schema changed 2h ago latest 10 in 30d
14/14 compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since 2026-11-15. Last up 2026-11-15.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status online, 100% uptime 30d, 342ms response p95, x402 compliance 14 of 14, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 497 listings, this one among them: the same 497 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Settled via coinbase ($1.77, 264 tx). Traction is a conservative undercount; first settlement seen 2026-08-16.
All measured facts
What it does
20 monetized HTTP APIs on the x402 protocol · prediction markets (Polymarket, Kalshi), DeFi/crypto data, multi-chain on-chain reads, live weather, real-time web search, and cross-platform prediction-market divergence signals. No API keys or signups: call any route, receive an HTTP 402 with the exact USDC price, sign a payment, retry, get the data back. Payments settle on Base, Polygon, Arbitrum, or Solana.
MicroTap is a listed x402 Data API. Captured payment terms name Arbitrum One, Base, Polygon, Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-10-17 to 2026-11-15 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · Data
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 342ms
- avg response
- 209ms
- total checks
- 4,515
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.001
- price (max)
- $0.05
- category percentile (min)
- p9 in Data
- category percentile (max)
- p58 in Data
- endpoints / prices
- 20 / 4
- model
- tiered
- stability
- 8%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 87d
- registrar
- Name.com, Inc.
- hosting
- custom
- domain created
- 2026-08-15
Identity facts, not a risk score.
- assessment volume 30d
- $1.77
- exact assessment volume 30d (USD)
- 1.769
- assessment recorded at (UTC)
- 2026-11-15T21:13:04.591Z
- buyers 30d
- 59
- settlements 30d
- 264
- measured since
- 2026-08-16 (start of our harvest window)
- last settlement
- 2026-10-28
- top buyer share
- 29% of 30d volume (address, not entity)
- top 3 buyers share
- 43% of 30d volume (addresses, not entities)
- concentrated volume
- no
- trend 7d vs 30d
- 1.20x the 30d daily rate
- networks
- eip155:137, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
- volume all-time
- $2.78
- settlements all-time
- 646
- median settlement 30d
- $0.003
- max settlement 30d
- $0.05
Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.
- member since
- 2026-08-17
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 306ms | 20 | |
| Online | 402 | 224ms | 20 | |
| Online | 402 | 248ms | 20 | |
| Online | 402 | 205ms | 20 | |
| Online | 402 | 299ms | 20 | |
| Online | 402 | 225ms | 20 | |
| Online | 402 | 201ms | 20 | |
| Online | 402 | 167ms | 20 | |
| Online | 402 | 157ms | 20 | |
| Online | 402 | 280ms | 20 | |
| Online | 402 | 249ms | 20 | |
| Online | 402 | 179ms | 20 | |
| Online | 402 | 228ms | 20 | |
| Online | 402 | 170ms | 20 | |
| Online | 402 | 262ms | 20 | |
| Online | 402 | 207ms | 20 | |
| Online | 402 | 177ms | 20 | |
| Online | 402 | 241ms | 20 |
Changeslatest 10 in 30d
| Observed at (UTC) | Change | Evidence |
|---|---|---|
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added | |
| schema changed | schema removed schema added |
Over time
On-chain volume daily snapshots, USD 30d: $1.77, peak $0.24 on 10-25
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 100% on all 29 completed days
- Volume 30d
- $1.77
- Uptime
- 100% on all 29 completed days
More charts
Response time daily average, ms min 144ms, avg 197ms, max 256ms
10-17 to 11-15* UTC
Scores over time
x402 compliance low 14/14, high 14/14
10-17 to 11-15* UTC
Price percentile in Data own low to high; exact values below
10-17 to 11-15* UTC
Site signals present (of 6) own low to high; exact values below
10-17 to 11-15* UTC
Scores: one day per column, 10-17 to 11-15*, on the columns of Response time. Uptime held 100% every day in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Daily snapshot total, 30d: $1.43, peak $0.24 on 10-25. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.
Daily address snapshots: 2026-10-17 to 2026-11-15 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here. † marks a recorded $0.00 with settlements.
Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Volume | Buyers | Settlements | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|---|---|---|
| 2026-10-17 | $0.02 | 1 | 2 | 100% | 167.81ms | 14/14 | p9 | 6/6 |
| 2026-10-18 | $0.04 | 1 | 4 | 100% | 162.52ms | 14/14 | p9 | 6/6 |
| 2026-10-19 | $0.05 | 4 | 5 | 100% | 197.09ms | 14/14 | p9 | 6/6 |
| 2026-10-20 | $0.07 | 3 | 7 | 100% | 196.92ms | 14/14 | p9 | 6/6 |
| 2026-10-21 | $0.11 | 5 | 7 | 100% | 165.61ms | 14/14 | p9 | 6/6 |
| 2026-10-22 | $0.06 | 4 | 5 | 100% | 170.94ms | 14/14 | p9 | 6/6 |
| 2026-10-23 | $0.04 | 4 | 4 | 100% | 183.27ms | 14/14 | p9 | 6/6 |
| 2026-10-24 | $0.08 | 4 | 6 | 100% | 143.72ms | 14/14 | p9 | 6/6 |
| 2026-10-25 | $0.24 | 9 | 20 | 100% | 184.22ms | 14/14 | p9 | 6/6 |
| 2026-10-26 | $0.01 | 1 | 1 | 100% | 219.01ms | 14/14 | p9 | 6/6 |
| 2026-10-27 | $0.01 | 1 | 1 | 100% | 164.80ms | 14/14 | p9 | 6/6 |
| 2026-10-28 | $0.01 | 3 | 3 | 100% | 177.44ms | 14/14 | p9 | 6/6 |
| 2026-10-29 | $0.08 | 7 | 11 | 100% | 179.42ms | 14/14 | p9 | 6/6 |
| 2026-10-30 | $0.04 | 7 | 11 | 100% | 256.14ms | 14/14 | p9 | 6/6 |
| 2026-10-31 | $0.02 | 2 | 2 | 100% | 183.93ms | 14/14 | p9 | 6/6 |
| 2026-11-01 | $0.07 | 2 | 4 | 100% | 213.27ms | 14/14 | p9 | 6/6 |
| 2026-11-02 | $0.00 recorded† | 1 | 1 | 100% | 210.52ms | 14/14 | p9 | 6/6 |
| 2026-11-03 | $0.02 | 4 | 4 | 100% | 207.73ms | 14/14 | p9 | 6/6 |
| 2026-11-04 | $0.10 | 3 | 6 | 100% | 246.66ms | 14/14 | p9 | 6/6 |
| 2026-11-05 | $0.04 | 4 | 4 | 100% | 225.53ms | 14/14 | p9 | 6/6 |
| 2026-11-06 | $0.06 | 3 | 7 | 100% | 196.88ms | 14/14 | p9 | 6/6 |
| 2026-11-07 | $0.02 | 2 | 2 | 100% | 216.45ms | 14/14 | p9 | 6/6 |
| 2026-11-08 | $0.05 | 5 | 5 | 100% | 204.32ms | 14/14 | p9 | 6/6 |
| 2026-11-09 | no data | no data | no data | 100% | 218.03ms | 14/14 | p9 | 6/6 |
| 2026-11-10 | $0.03 | 3 | 4 | 100% | 236.98ms | 14/14 | p9 | 6/6 |
| 2026-11-11 | $0.10 | 2 | 8 | 100% | 193.89ms | 14/14 | p9 | 6/6 |
| 2026-11-12 | $0.01 | 2 | 2 | 100% | 174.21ms | 14/14 | p9 | 6/6 |
| 2026-11-13 | $0.04 | 4 | 4 | 100% | 201.22ms | 14/14 | p9 | 6/6 |
| 2026-11-14 | $0.01 | 1 | 1 | 100% | 186.82ms | 14/14 | p9 | 6/6 |
| 2026-11-15* | no data | no data | no data | 100% | 219.40ms | 14/14 | p9 | 6/6 |
Alternatives in Data
5 of 496 other ranked services in Data, ordered by the same measured score.
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