x402 Toolbox
payment-ready until 2026-10-15
A toolbox of x402 payment-protocol mechanics: 25 small real endpoints on Base mainnet USDC, each demonstrating a distinct pattern -- oracle attestation, escrow, auction, prediction market, deferred invoicing, subscription reminders, insured data feeds, and more.
Call it x402 v2
x402 v2
- Base URL
- https://lab.paidapis.net
- Payment
- x402 v2, header channel
$ curl -i 'https://lab.paidapis.net/api/attestation-log' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 23 paid routes on lab.paidapis.net
POST/api/alerts/subscribe Base$0.02since 09-21
GET/api/attestation-log Base$0.02since 09-21
GET/api/batch-resize Base$0.005since 09-21
POST/api/bundle/subscribe Base$0.03since 09-21
GET/api/enrich-address Base$0.01since 09-21
POST/api/escrow/create Base$0.02since 09-21
GET/api/freshness-priced-data Base$0.002since 09-21
GET/api/gas-comparator Base$0.01since 09-21
15 more in Example 402 response
Prices as captured in the 402 response: median $0.01 across the 23 endpoints, unchanged since first capture.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| POST | / | No description | $0.02 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.02 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.005 | Base | USDC | header | since 09-21 |
| POST | / | No description | $0.03 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| POST | / | No description | $0.02 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.002 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.005 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| POST | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| POST | / | No description | $0.001 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.02 | Base | USDC | header | since 09-21 |
| POST | / | No description | $0.005 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.005 | Base | USDC | header | since 09-21 |
| POST | / | No description | $0.01 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.02 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.05 | Base | USDC | header | since 09-21 |
| GET | / | No description | $0.01 | Base | USDC | header | since 09-21 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 23 payloads captured by the monitor.
126 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/market-snapshot",
"mimeType": "application/json",
"description": "Aggregated market snapshot: Ethereum mainnet gas price (Gwei), ETH/USD spot price, and the latest Base mainnet block number and timestamp — combined into one call. Optional ?ref=<address> pays that wallet a 20% referral cut, sent as a separate on-chain transfer after settlement."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ref": ""
}
},
"output": {
"type": "json",
"example": {
"dataAsOf": "",
"ethUsdPrice": 0,
"gasPriceGwei": 0,
"latestBaseBlock": {
"number": 0,
"timestamp": ""
}
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {
"ref": {
"type": "string",
"description": "Wallet address to pay a referral cut to."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"dataAsOf": {
"type": "string"
},
"ethUsdPrice": {
"type": "number"
},
"gasPriceGwei": {
"type": "number"
},
"latestBaseBlock": {
"type": "object",
"properties": {
"number": {
"type": "integer"
},
"timestamp": {
"type": "string"
}
}
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
} Other captured 402 responses (22)
Captured payload 2 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/normalized-gas",
"mimeType": "application/json",
"description": "Normalization: Ethereum and Base both return gas price and block data as raw hex (wei, Unix seconds) with no shared shape. This cleans both into one consistent schema per chain — decimal Gwei, ISO 8601 timestamps."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"dataAsOf": "",
"snapshots": []
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"dataAsOf": {
"type": "string"
},
"snapshots": {
"type": "array",
"items": {
"type": "object",
"properties": {
"chain": {
"type": "string"
},
"blockNumber": {
"type": "integer"
},
"gasPriceGwei": {
"type": "number"
},
"blockTimestamp": {
"type": "string"
}
}
}
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 3 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/gas-comparator",
"mimeType": "application/json",
"description": "Cross-chain gas comparator: real, current gas price on Ethereum and Base side by side, with the delta and ratio between them, plus the estimated USD cost of a standard 21,000-gas transfer on each chain (using the live ETH/USD price). No advice or 'cheaper chain' verdict — just the numbers."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"base": {},
"ratio": 0,
"ethereum": {},
"checkedAt": "",
"deltaGwei": 0,
"ethUsdPrice": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"base": {
"type": "object"
},
"ratio": {
"type": "number"
},
"ethereum": {
"type": "object"
},
"checkedAt": {
"type": "string"
},
"deltaGwei": {
"type": "number"
},
"ethUsdPrice": {
"type": "number"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 4 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/large-usdc-transfers",
"mimeType": "application/json",
"description": "Filtering: USDC on Base settles thousands of transfers a minute. This scans the raw feed and returns only transfers above a value threshold (?minUsd=, default $10,000) — the noise removed, not delivered."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"minUsd": 0
}
},
"output": {
"type": "json",
"example": {
"minUsd": 0,
"dataAsOf": "",
"transfers": [],
"rawEventCount": 0,
"scannedBlocks": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {
"minUsd": {
"type": "number",
"description": "Minimum USD value to include (default 10000)."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"minUsd": {
"type": "number"
},
"dataAsOf": {
"type": "string"
},
"transfers": {
"type": "array",
"items": {
"type": "object",
"properties": {
"to": {
"type": "string"
},
"from": {
"type": "string"
},
"txHash": {
"type": "string"
},
"amountUsdc": {
"type": "number"
},
"blockNumber": {
"type": "integer"
}
}
}
},
"rawEventCount": {
"type": "integer"
},
"scannedBlocks": {
"type": "integer"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 5 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/enrich-address",
"mimeType": "application/json",
"description": "Enrichment: attaches real on-chain context to a bare address (contract vs EOA, native balance, transaction count, new-vs-active classification) — checkable facts only, no unverifiable labels."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": ""
}
},
"output": {
"type": "json",
"example": {
"address": "",
"isContract": false,
"classification": "contract",
"nativeBalanceEth": 0,
"transactionCount": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "Address to look up."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"address": {
"type": "string"
},
"isContract": {
"type": "boolean"
},
"classification": {
"enum": [
"contract",
"new-wallet",
"active-wallet"
],
"type": "string"
},
"nativeBalanceEth": {
"type": "number"
},
"transactionCount": {
"type": "integer"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 6 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/gas-metrics",
"mimeType": "application/json",
"description": "Derived metrics: Ethereum gas price sampled continuously in the background and turned into rolling average, min/max, volatility, and trend direction over a window (?windowMinutes=, default 10) — none of which exist in the raw upstream feed's single instantaneous value."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"windowMinutes": 0
}
},
"output": {
"type": "json",
"example": {
"max": 0,
"min": 0,
"trend": "up",
"stdDev": 0,
"average": 0,
"current": 0,
"sampleCount": 0,
"windowMinutes": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {
"windowMinutes": {
"type": "number",
"description": "Window size in minutes (default 10)."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"max": {
"type": [
"number",
"null"
]
},
"min": {
"type": [
"number",
"null"
]
},
"trend": {
"enum": [
"up",
"down",
"flat",
"insufficient-data"
],
"type": "string"
},
"stdDev": {
"type": [
"number",
"null"
]
},
"average": {
"type": [
"number",
"null"
]
},
"current": {
"type": [
"number",
"null"
]
},
"sampleCount": {
"type": "integer"
},
"windowMinutes": {
"type": "integer"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 7 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/alerts/subscribe",
"mimeType": "application/json",
"description": "Alerting: register a one-shot webhook that fires when Ethereum gas price crosses your threshold — the server pushes to you when it happens, instead of you polling for it."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"condition": "above",
"webhookUrl": "",
"thresholdGwei": 0
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"status": "active",
"alertId": "",
"firedAt": "",
"condition": "above",
"createdAt": "",
"webhookUrl": "",
"thresholdGwei": 0,
"gasPriceGweiAtTrigger": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"body": {
"type": "object",
"required": [
"webhookUrl",
"condition",
"thresholdGwei"
],
"properties": {
"condition": {
"enum": [
"above",
"below"
],
"type": "string",
"description": "Either \"above\" or \"below\"."
},
"webhookUrl": {
"type": "string",
"description": "Public http(s) URL to POST to when the alert fires."
},
"thresholdGwei": {
"type": "number",
"description": "Gas price threshold in Gwei."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"status": {
"enum": [
"active",
"fired",
"delivery-failed"
],
"type": "string"
},
"alertId": {
"type": "string"
},
"firedAt": {
"type": [
"string",
"null"
]
},
"condition": {
"enum": [
"above",
"below"
],
"type": "string"
},
"createdAt": {
"type": "string"
},
"webhookUrl": {
"type": "string"
},
"thresholdGwei": {
"type": "number"
},
"gasPriceGweiAtTrigger": {
"type": [
"number",
"null"
]
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 8 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/reliable-eth-price",
"mimeType": "application/json",
"description": "Reliability: ETH/USD price with retry-with-backoff and last-known-good cache fallback layered on top — sells dependability, not the raw data itself. Optional ?simulateFailureRate=0-1 for demoing the fallback path."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"simulateFailureRate": 0
}
},
"output": {
"type": "json",
"example": {
"source": "live",
"attempts": 0,
"ethUsdPrice": 0,
"cacheAgeSeconds": 0,
"simulateFailureRate": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {
"simulateFailureRate": {
"type": "number",
"description": "0-1, simulates upstream failures to demo the fallback path."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"source": {
"enum": [
"live",
"cache-fallback"
],
"type": "string"
},
"attempts": {
"type": "integer"
},
"ethUsdPrice": {
"type": "number"
},
"cacheAgeSeconds": {
"type": [
"number",
"null"
]
},
"simulateFailureRate": {
"type": "number"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 9 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/attestation-log",
"mimeType": "application/json",
"description": "Audit trail: a verifiable, timestamped log of past oracle attestations (?limit=, default 20). Each entry carries its own signature from the verify-tx endpoint; the returned page is also freshly signed as a whole."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 0
}
},
"output": {
"type": "json",
"example": {
"count": 0,
"generatedAt": "",
"attestations": [],
"pageSignature": "",
"signerAddress": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {
"limit": {
"type": "integer",
"description": "Max entries to return, 1-100 (default 20)."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"count": {
"type": "integer"
},
"generatedAt": {
"type": "string"
},
"attestations": {
"type": "array",
"items": {
"type": "object"
}
},
"pageSignature": {
"type": "string"
},
"signerAddress": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 10 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/wiki-summary",
"mimeType": "application/json",
"description": "Format conversion: Wikipedia's own REST API serves full rendered HTML, not JSON. This fetches an article's lead section (?title=) and returns clean, tag-free paragraph text as JSON."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"title": ""
}
},
"output": {
"type": "json",
"example": {
"title": "",
"sourceUrl": "",
"paragraphs": [],
"convertedAt": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"title"
],
"properties": {
"title": {
"type": "string",
"description": "Wikipedia article title."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"title": {
"type": "string"
},
"sourceUrl": {
"type": "string"
},
"paragraphs": {
"type": "array",
"items": {
"type": "string"
}
},
"convertedAt": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 11 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/verify-tx",
"mimeType": "application/json",
"description": "Oracle: checks whether a base transaction hash has confirmed on-chain, and returns a signed (EIP-191) yes/no attestation — verifiable independently against 0x5a6d60f11C0E33f97E2De12b8B2b70d1B1FE9Efc, without trusting us again on a later call."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"txHash": ""
}
},
"output": {
"type": "json",
"example": {
"chain": "",
"txHash": "",
"checkedAt": "",
"confirmed": false,
"signature": "",
"blockNumber": 0,
"signerAddress": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"txHash"
],
"properties": {
"txHash": {
"type": "string",
"description": "32-byte transaction hash to check."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"chain": {
"type": "string"
},
"txHash": {
"type": "string"
},
"checkedAt": {
"type": "string"
},
"confirmed": {
"type": "boolean"
},
"signature": {
"type": "string"
},
"blockNumber": {
"type": [
"integer",
"null"
]
},
"signerAddress": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 12 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/verify-tx-multi-source",
"mimeType": "application/json",
"description": "Multi-source oracle: checks a Base tx hash against 3 independent RPC providers in parallel and only signs an attestation if all of them unanimously agree. If they disagree, the raw per-source breakdown is returned instead of a false attestation — stronger trust than the single-source oracle, priced accordingly."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"txHash": ""
}
},
"output": {
"type": "json",
"example": {
"chain": "",
"signed": false,
"txHash": "",
"sources": [],
"checkedAt": "",
"confirmed": false,
"signature": "",
"blockNumber": 0,
"totalSources": 0,
"signerAddress": "",
"agreeingSources": 0,
"consensusReached": false
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"txHash"
],
"properties": {
"txHash": {
"type": "string",
"description": "32-byte transaction hash to check."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"chain": {
"type": "string"
},
"signed": {
"type": "boolean"
},
"txHash": {
"type": "string"
},
"sources": {
"type": "array",
"items": {
"type": "object"
}
},
"checkedAt": {
"type": "string"
},
"confirmed": {
"type": [
"boolean",
"null"
]
},
"signature": {
"type": "string"
},
"blockNumber": {
"type": [
"integer",
"null"
]
},
"totalSources": {
"type": "integer"
},
"signerAddress": {
"type": "string"
},
"agreeingSources": {
"type": "integer"
},
"consensusReached": {
"type": "boolean"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 13 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/escrow/create",
"mimeType": "application/json",
"description": "Escrow-lite: payment settles immediately, like every other endpoint here — but the purchased resource is withheld until our oracle confirms your named release condition (a given tx hash confirming on-chain). Soft escrow: delayed delivery, not real fund custody."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"txHash": ""
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"status": "",
"escrowId": "",
"createdAt": "",
"releaseCondition": {}
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"body": {
"type": "object",
"required": [
"txHash"
],
"properties": {
"txHash": {
"type": "string",
"description": "32-byte transaction hash that must confirm to release the resource."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"status": {
"type": "string"
},
"escrowId": {
"type": "string"
},
"createdAt": {
"type": "string"
},
"releaseCondition": {
"type": "object"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 14 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/invoice/create",
"mimeType": "application/json",
"description": "Machine-to-machine invoicing: issue a signed invoice now (payerAddress, amountUsdc, optional lineItems/memo/dueBy); the payer settles it later at its own dynamically-priced /pay sub-resource, instead of paying synchronously like every other endpoint here."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"memo": "",
"dueBy": "",
"lineItems": "",
"amountUsdc": 0,
"payerAddress": ""
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"dueBy": "",
"payUrl": "",
"status": "pending",
"invoiceId": "",
"signature": "",
"amountUsdc": 0,
"payerAddress": "",
"signerAddress": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"body": {
"type": "object",
"required": [
"payerAddress",
"amountUsdc"
],
"properties": {
"memo": {
"type": "string",
"description": "Free-text note."
},
"dueBy": {
"type": "string",
"description": "ISO 8601 due date (default 7 days out)."
},
"lineItems": {
"type": "string",
"description": "JSON array of {\"description\",\"amountUsdc\"} objects, for record-keeping."
},
"amountUsdc": {
"type": "number",
"description": "Total amount due, in USDC."
},
"payerAddress": {
"type": "string",
"description": "Wallet address expected to pay this invoice."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"dueBy": {
"type": "string"
},
"payUrl": {
"type": "string"
},
"status": {
"enum": [
"pending",
"paid"
],
"type": "string"
},
"invoiceId": {
"type": "string"
},
"signature": {
"type": "string"
},
"amountUsdc": {
"type": "number"
},
"payerAddress": {
"type": "string"
},
"signerAddress": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 15 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/subscriptions/register",
"mimeType": "application/json",
"description": "Register a subscription (yours or one you manage for another agent) for renewal-reminder tracking. Bookkeeping only — no auto-renewal, no custody, this server never pays on your behalf. Fires a webhook once per cycle when the reminder window opens."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"amountUsdc": 0,
"serviceUrl": "",
"webhookUrl": "",
"serviceName": "",
"ownerAddress": "",
"nextRenewalAt": "",
"renewsEverySeconds": 0,
"reminderLeadSeconds": 0
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"status": "active",
"amountUsdc": 0,
"serviceUrl": "",
"webhookUrl": "",
"serviceName": "",
"ownerAddress": "",
"nextRenewalAt": "",
"subscriptionId": "",
"renewsEverySeconds": 0,
"reminderLeadSeconds": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"body": {
"type": "object",
"required": [
"ownerAddress",
"serviceName",
"serviceUrl",
"amountUsdc",
"renewsEverySeconds"
],
"properties": {
"amountUsdc": {
"type": "number",
"description": "Renewal amount, in USDC."
},
"serviceUrl": {
"type": "string",
"description": "URL of the subscribed service."
},
"webhookUrl": {
"type": "string",
"description": "Public http(s) URL to POST a reminder to before renewal is due."
},
"serviceName": {
"type": "string",
"description": "Display name of the subscribed service (max 80 chars)."
},
"ownerAddress": {
"type": "string",
"description": "Wallet address this subscription belongs to."
},
"nextRenewalAt": {
"type": "string",
"description": "ISO 8601 date of the next renewal (default: now + renewsEverySeconds)."
},
"renewsEverySeconds": {
"type": "integer",
"description": "Renewal period length, in seconds."
},
"reminderLeadSeconds": {
"type": "integer",
"description": "Seconds before nextRenewalAt to fire the reminder, up to 2592000 (default 60)."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"status": {
"enum": [
"active",
"cancelled"
],
"type": "string"
},
"amountUsdc": {
"type": "number"
},
"serviceUrl": {
"type": "string"
},
"webhookUrl": {
"type": [
"string",
"null"
]
},
"serviceName": {
"type": "string"
},
"ownerAddress": {
"type": "string"
},
"nextRenewalAt": {
"type": "string"
},
"subscriptionId": {
"type": "string"
},
"renewsEverySeconds": {
"type": "integer"
},
"reminderLeadSeconds": {
"type": "integer"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 16 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/resize-image",
"mimeType": "application/json",
"description": "Task-runner: resize an image (?url=, ?width=, ?height=, max 2000px each) and return it as a data URL. Priced at $0.02/output-megapixel (min $0.005) — sells compute, metered by resource use, not a flat fee."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "",
"width": 0,
"height": 0
}
},
"output": {
"type": "json",
"example": {
"width": 0,
"format": "",
"height": 0,
"resizedAt": "",
"sizeBytes": 0,
"imageDataUrl": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"url",
"width",
"height"
],
"properties": {
"url": {
"type": "string",
"description": "Public http(s) URL of the source image."
},
"width": {
"type": "integer",
"description": "Output width in px, up to 2000."
},
"height": {
"type": "integer",
"description": "Output height in px, up to 2000."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"width": {
"type": "integer"
},
"format": {
"type": "string"
},
"height": {
"type": "integer"
},
"resizedAt": {
"type": "string"
},
"sizeBytes": {
"type": "integer"
},
"imageDataUrl": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 17 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/batch-resize",
"mimeType": "application/json",
"description": "Batch task-runner: run up to 5 image-resize jobs in one paid call (?jobs=<JSON array of {url,width,height}>). Priced as the sum of each job's real output-megapixel cost — one payment covers N heterogeneous units of work instead of paying per call for each."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"jobs": ""
}
},
"output": {
"type": "json",
"example": {
"results": [],
"totalJobs": 0,
"failedCount": 0,
"processedAt": "",
"succeededCount": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"jobs"
],
"properties": {
"jobs": {
"type": "string",
"description": "JSON array (max 5) of {\"url\",\"width\",\"height\"} objects."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"results": {
"type": "array",
"items": {
"type": "object"
}
},
"totalJobs": {
"type": "integer"
},
"failedCount": {
"type": "integer"
},
"processedAt": {
"type": "string"
},
"succeededCount": {
"type": "integer"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 18 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/leaderboard/list",
"mimeType": "application/json",
"description": "Leaderboard: pay a tiny fee to appear on a ranked scoreboard (?name=, ?url=, ?note=). No underlying data product — pure visibility. Ranked by cumulative amount paid; paying again bumps your rank."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "POST",
"queryParams": {
"url": "",
"name": "",
"note": ""
}
},
"output": {
"type": "json",
"example": {
"status": "",
"message": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"name"
],
"properties": {
"url": {
"type": "string",
"description": "Optional URL to associate with the listing."
},
"name": {
"type": "string",
"description": "Display name to list (max 80 chars)."
},
"note": {
"type": "string",
"description": "Optional short note."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"status": {
"type": "string"
},
"message": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 19 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/bundle/subscribe",
"mimeType": "application/json",
"description": "Bundle/all-access pass: one payment unlocks 2 minutes of free access to /api/bundle/market-snapshot, /api/bundle/normalized-gas, and /api/bundle/gas-metrics — instead of paying each separately (?subscriberAddress= required). New mechanic: an access-control check gates every bundled route before it runs."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "POST",
"queryParams": {
"subscriberAddress": ""
}
},
"output": {
"type": "json",
"example": {
"unlockedUntil": "",
"subscriberAddress": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"subscriberAddress"
],
"properties": {
"subscriberAddress": {
"type": "string",
"description": "Wallet address to grant bundle access to."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"unlockedUntil": {
"type": "string"
},
"subscriberAddress": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 20 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/insured-feed/subscribe",
"mimeType": "application/json",
"description": "Insured data feed: pay a premium for an ETH/USD price snapshot (?premiumUsdc=, ?maxDeviationPct=, ?checkDelaySeconds=). If the real price has drifted more than your insured tolerance by the checkpoint, claim a 2x refund — a real payout for genuinely stale data, not a fabricated failure."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "POST",
"queryParams": {
"premiumUsdc": 0,
"maxDeviationPct": 0,
"checkDelaySeconds": 0,
"subscriberAddress": ""
}
},
"output": {
"type": "json",
"example": {
"status": "pending-check",
"checkAt": "",
"premiumUsdc": 0,
"subscribedAt": "",
"subscriptionId": "",
"maxDeviationPct": 0,
"subscriberAddress": "",
"actualDeviationPct": 0,
"snapshotEthUsdPrice": 0,
"liveEthUsdPriceAtCheck": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"subscriberAddress",
"premiumUsdc"
],
"properties": {
"premiumUsdc": {
"type": "number",
"description": "Premium to pay, up to 5."
},
"maxDeviationPct": {
"type": "number",
"description": "Insured tolerance in percent (default 1)."
},
"checkDelaySeconds": {
"type": "integer",
"description": "Seconds until the checkpoint, up to 3600 (default 30)."
},
"subscriberAddress": {
"type": "string",
"description": "Wallet address eligible for the insurance payout."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"status": {
"enum": [
"pending-check",
"held",
"claim-eligible",
"refunded"
],
"type": "string"
},
"checkAt": {
"type": "string"
},
"premiumUsdc": {
"type": "number"
},
"subscribedAt": {
"type": "string"
},
"subscriptionId": {
"type": "string"
},
"maxDeviationPct": {
"type": "number"
},
"subscriberAddress": {
"type": "string"
},
"actualDeviationPct": {
"type": [
"number",
"null"
]
},
"snapshotEthUsdPrice": {
"type": "number"
},
"liveEthUsdPriceAtCheck": {
"type": [
"number",
"null"
]
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 21 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/reputation",
"mimeType": "application/json",
"description": "Reputation layer: a trust score (?address=) computed from two real sources — live on-chain activity (via enrichment) and our own ledger of settled payments this address has actually made to us. No third-party data, fully documented breakdown, not a black box."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": ""
}
},
"output": {
"type": "json",
"example": {
"address": "",
"signals": {},
"breakdown": {},
"checkedAt": "",
"trustScore": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "Address to score."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"address": {
"type": "string"
},
"signals": {
"type": "object"
},
"breakdown": {
"type": "object"
},
"checkedAt": {
"type": "string"
},
"trustScore": {
"type": "number"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 22 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/gas-history-export",
"mimeType": "application/json",
"description": "Historical data export: raw Ethereum gas price samples over a date range (?from=, ?to=, ISO 8601, max 24h; ?format=json|csv). Priced at $0.0005/sample (min $0.005) — the real row count for your range, not a flat fee."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"to": "",
"from": "",
"format": "json"
}
},
"output": {
"type": "json",
"example": {
"to": "",
"from": "",
"samples": [],
"sampleCount": 0
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [
"from",
"to"
],
"properties": {
"to": {
"type": "string",
"description": "ISO 8601 range end."
},
"from": {
"type": "string",
"description": "ISO 8601 range start."
},
"format": {
"enum": [
"json",
"csv"
],
"type": "string",
"description": "Either \"json\" (default) or \"csv\"."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"to": {
"type": "string"
},
"from": {
"type": "string"
},
"samples": {
"type": "array",
"items": {
"type": "object",
"properties": {
"timestamp": {
"type": "string"
},
"gasPriceGwei": {
"type": "number"
}
}
}
},
"sampleCount": {
"type": "integer"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Captured payload 23 of 23
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf74f2020aC3d73F2Bf5ee0F8Bf635475eA881319",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://lab.paidapis.net/api/freshness-priced-data",
"mimeType": "application/json",
"description": "Freshness-tiered pricing: gas price + ETH/USD price, same data either way. ?freshness=cached ($0.002) serves the last known values with no network call; ?freshness=live ($0.02) forces a guaranteed-current fetch right now."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"freshness": "cached"
}
},
"output": {
"type": "json",
"example": {
"servedAt": "",
"freshness": "cached",
"ethUsdPrice": 0,
"gasPriceGwei": 0,
"gasSampleCount": 0,
"ethPriceCachedAt": ""
}
}
},
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"type": "object",
"required": [],
"properties": {
"freshness": {
"enum": [
"cached",
"live"
],
"type": "string",
"description": "Either \"cached\" (default) or \"live\"."
}
}
}
}
},
"output": {
"properties": {
"example": {
"type": "object",
"properties": {
"servedAt": {
"type": "string"
},
"freshness": {
"enum": [
"cached",
"live"
],
"type": "string"
},
"ethUsdPrice": {
"type": [
"number",
"null"
]
},
"gasPriceGwei": {
"type": [
"number",
"null"
]
},
"gasSampleCount": {
"type": "integer"
},
"ethPriceCachedAt": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_xdmnqyvi"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
89/100 Solid
#29 of 364 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime since 09-21
- Compliance
- A 14/14 checks pass
- Price
- $0.001 to $0.05 p10 in Data
- Risk
- clean no risk flag
- Traction
- $0.00 30d 0 buyers
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 2026-09-21. Last up 2026-10-08.
── 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, 274ms 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 364 listings, this one among them: the same 364 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.
Traction is a conservative undercount.
All measured facts
What it does
A toolbox of x402 payment-protocol mechanics: 25 small real endpoints on Base mainnet USDC, each demonstrating a distinct pattern -- oracle attestation, escrow, auction, prediction market, deferred invoicing, subscription reminders, insured data feeds, and more. No API keys, no signup.
x402 Toolbox is a listed x402 Data API. Captured payment terms name Base. 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: 2026-09-09 to 2026-10-08 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. 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
- 274ms
- avg response
- 199ms
- total checks
- 1,526
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)
- p10 in Data
- category percentile (max)
- p58 in Data
- endpoints / prices
- 23 / 7
- model
- tiered
- stability
- 100%
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
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
- assessment volume 30d
- $0.00
- exact assessment volume 30d (USD)
- 0
- assessment recorded at (UTC)
- 2026-10-08T10:13:02.025Z
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
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 is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.
- member since
- 2026-09-21
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 196ms | 23 | |
| Online | 402 | 343ms | 23 | |
| Online | 402 | 316ms | 23 | |
| Online | 402 | 306ms | 23 | |
| Online | 402 | 295ms | 23 | |
| Online | 402 | 246ms | 23 | |
| Online | 402 | 255ms | 23 | |
| Online | 402 | 273ms | 23 | |
| Online | 402 | 331ms | 23 | |
| Online | 402 | 298ms | 23 | |
| Online | 402 | 277ms | 23 | |
| Online | 402 | 325ms | 23 | |
| Online | 402 | 289ms | 23 | |
| Online | 402 | 253ms | 23 | |
| Online | 402 | 138ms | 23 | |
| Online | 402 | 153ms | 23 | |
| Online | 402 | 233ms | 23 | |
| Online | 402 | 257ms | 23 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain volume daily snapshots, USD 30d: $0.00
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 100% on all 17 completed days
- Volume 30d
- $0.00
- Uptime
- 100% on all 17 completed days
More charts
Response time daily average, ms min 153ms, avg 199ms, max 260ms
09-09 to 10-08* UTC
Scores over time
x402 compliance low 14/14, high 14/14
09-09 to 10-08* UTC
Price percentile in Data own low to high; exact values below
09-09 to 10-08* UTC
Site signals present (of 6) own low to high; exact values below
09-09 to 10-08* UTC
Scores: one day per column, 09-09 to 10-08*, on the columns of Response time. 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, no volume data in the last 30d. 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: 2026-09-09 to 2026-10-08 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.
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 |
|---|---|---|---|---|---|---|---|---|
| 2026-09-21 | no data | no data | no data | 100% | 171.16ms | 14/14 | p10 | 3/6 |
| 2026-09-22 | no data | no data | no data | 100% | 203.78ms | 14/14 | p10 | 3/6 |
| 2026-09-23 | no data | no data | no data | 100% | 259.72ms | 14/14 | p10 | 3/6 |
| 2026-09-24 | no data | no data | no data | 100% | 215.27ms | 14/14 | p10 | 3/6 |
| 2026-09-25 | no data | no data | no data | 100% | 201.06ms | 14/14 | p10 | 3/6 |
| 2026-09-26 | no data | no data | no data | 100% | 186.23ms | 14/14 | p10 | 3/6 |
| 2026-09-27 | no data | no data | no data | 100% | 193.13ms | 14/14 | p10 | 3/6 |
| 2026-09-28 | no data | no data | no data | 100% | 205.51ms | 14/14 | p10 | 3/6 |
| 2026-09-29 | no data | no data | no data | 100% | 203.09ms | 14/14 | p10 | 3/6 |
| 2026-09-30 | no data | no data | no data | 100% | 183.19ms | 14/14 | p10 | 3/6 |
| 2026-10-01 | no data | no data | no data | 100% | 185.19ms | 14/14 | p10 | 3/6 |
| 2026-10-02 | no data | no data | no data | 100% | 201.90ms | 14/14 | p10 | 3/6 |
| 2026-10-03 | no data | no data | no data | 100% | 196.27ms | 14/14 | p10 | 3/6 |
| 2026-10-04 | no data | no data | no data | 100% | 197.00ms | 14/14 | p10 | 3/6 |
| 2026-10-05 | no data | no data | no data | 100% | 203.89ms | 14/14 | p10 | 3/6 |
| 2026-10-06 | no data | no data | no data | 100% | 152.79ms | 14/14 | p10 | 3/6 |
| 2026-10-07 | no data | no data | no data | 100% | 198.23ms | 14/14 | p10 | 3/6 |
| 2026-10-08* | no data | no data | no data | 100% | 230.18ms | 14/14 | p10 | 3/6 |
Alternatives in Data
5 of 363 other ranked services in Data, ordered by the same measured score.
Own this service?
Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.
Update this listingEarn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.
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