Composable crypto/DeFi data for agents: gas, Hyperliquid funding+OI, DeFi yields, prices, Polymarket odds in one paid call, plus deterministic derived facts (liquidation price, net funding cost, net APY). x402 v2 exact on Base, settles via PayAI facilitator.
Pay from $0.01 to $0.02 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
first settlement 2026-07-21 · $0.22 all-time · last settled 2026-07-24
ASSESSMENT
updated 3h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 211ms
- avg response
- 211ms
- total checks
- 1
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.01 to $0.02 (p60 in Data)
- price (min)
- $0.01
- price (max)
- $0.02
- category percentile (min)
- p60 in Data
- category percentile (max)
- p47 in Data
- endpoints / prices
- 5 / 2
- model
- tiered
- stability
- 100%
risk clean
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
- 725d
- registrar
- CloudFlare, Inc.
- hosting
- custom
- domain created
- 2024-07-30
Identity facts, not a risk score.
traction $0 30d · 0 buyers
- volume 30d
- $0
- buyers 30d
- 0
- settlements 30d
- 0
- first settlement
- 2026-07-21
- last settlement
- 2026-07-24
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0.22
- settlements all-time
- 3
- median settlement 30d
- $0
- max settlement 30d
- $0
- settled via
- -
Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.
Currently sharing this payout address with jsonguard, x402 Agent-Commerce Starter + Platform Map.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides crypto/DeFi data including gas prices, perpetual funding rates, open interest, DeFi yields, and spot prices.
- category
- crypto-data
- in
- query params and body
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /v1/funding | $0.01 | Base | USDC | |
| GET | /v1/gas | $0.01 | Base | USDC | |
| GET | /v1/prices | $0.01 | Base | USDC | |
| POST | /v1/query | $0.02 | Base | USDC | |
| GET | /v1/yields | $0.01 | Base | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/funding returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://chainfeed.leeworks.dev/v1/funding'
// 402 response (captured by monitor) · 5 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa8B061d96F69426f11bcC807BfA00f0AF79541a7",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "http://chainfeed.leeworks.dev/v1/query",
"mimeType": "application/json",
"description": "Composable crypto/DeFi data + deterministic derived facts (gas, perp funding/OI, DeFi yields, prices)"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"coins": [
"BTC",
"ETH"
],
"chains": [
"base"
],
"derive": [
{
"fact": "liquidationPrice",
"debtUsd": 12000,
"collateralAmount": 10,
"collateralSymbol": "ETH",
"liquidationThreshold": 0.83
},
{
"coin": "BTC",
"fact": "netFundingCost",
"side": "long",
"hours": 8,
"notionalUsd": 10000
},
{
"fact": "gasCostEstimate",
"chain": "base",
"gasUnits": 150000
}
],
"symbols": [
"ETH"
],
"datapoints": [
"gas",
"funding",
"prices"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"asOf": "2026-07-23T00:00:00.000Z",
"data": {
"gas": {
"base": {
"chain": "base",
"gasPriceWei": "6000000",
"gasPriceGwei": 0.006,
"nativeSymbol": "ETH"
}
},
"prices": {
"prices": {
"coingecko:ethereum": {
"price": 1919.05,
"symbol": "ETH"
}
}
},
"funding": {
"funding": {
"BTC": {
"coin": "BTC",
"markPrice": 65000,
"openInterestUsd": 1234567,
"fundingRateHourly": 0.0000125
}
}
}
},
"errors": [],
"derived": [
{
"ok": true,
"fact": "liquidationPrice",
"unit": "USD per unit of collateral",
"value": 1445.78,
"inputs": {
"debtUsd": 12000,
"collateralAmount": 10,
"liquidationThreshold": 0.83
},
"formula": "liquidationPrice = debtUsd / (collateralAmount * liquidationThreshold)"
}
],
"sources": {
"gas": {
"ok": true
},
"prices": {
"ok": true
},
"funding": {
"ok": true
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"coins": {
"type": "array",
"items": {
"type": "string"
},
"description": "Perp/price symbols (BTC, ETH, SOL...)"
},
"chains": {
"type": "array",
"items": {
"type": "string"
},
"description": "Chains for gas (base, ethereum)"
},
"derive": {
"type": "array",
"items": {
"type": "object",
"required": [
"fact"
],
"properties": {
"fact": {
"type": "string"
}
}
},
"description": "Deterministic derived facts to compute. fact in [liquidationPrice, netFundingCost, gasCostEstimate, netApy]"
},
"yields": {
"type": "object",
"properties": {
"chain": {
"type": "string"
},
"limit": {
"type": "number"
},
"symbol": {
"type": "string"
},
"project": {
"type": "string"
},
"minTvlUsd": {
"type": "number"
}
},
"description": "Yield filter"
},
"symbols": {
"type": "array",
"items": {
"type": "string"
},
"description": "Symbols to price (mapped to price ids)"
},
"priceIds": {
"type": "array",
"items": {
"type": "string"
},
"description": "Raw DefiLlama price ids"
},
"datapoints": {
"type": "array",
"items": {
"enum": [
"gas",
"funding",
"yields",
"prices",
"predictions"
],
"type": "string"
},
"description": "Which raw datasets to fetch and normalize"
},
"predictions": {
"type": "object",
"properties": {
"limit": {
"type": "number"
},
"query": {
"type": "string"
}
}
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa8B061d96F69426f11bcC807BfA00f0AF79541a7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "http://chainfeed.leeworks.dev/v1/gas",
"mimeType": "application/json",
"description": "Gas price for a chain"
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa8B061d96F69426f11bcC807BfA00f0AF79541a7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "http://chainfeed.leeworks.dev/v1/funding",
"mimeType": "application/json",
"description": "Perp funding rate + open interest"
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa8B061d96F69426f11bcC807BfA00f0AF79541a7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "http://chainfeed.leeworks.dev/v1/yields",
"mimeType": "application/json",
"description": "DeFi yields (filterable)"
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa8B061d96F69426f11bcC807BfA00f0AF79541a7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "http://chainfeed.leeworks.dev/v1/prices",
"mimeType": "application/json",
"description": "Spot USD prices"
},
"x402Version": 2
}
] OVER TIME
All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/chainfeed/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
Median across 5 endpoints. Use the selector to isolate one.
Shared payout address (2 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 3 services sharing it: a declared convention, not an individually observed measure.
Shared payout address (2 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 3 services sharing the address and can be fractional: a declared convention, not an individually observed measure.
COMPLIANCE
11/11 checks pass · grade A- 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
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (12) · click to expand
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