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x402 Trust Index Lookup
x402
x402 Trust Index Lookup is a paid API for AI agents from paycheck.hectichustle.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).
Looks up the x402 Trust Index grade for a given x402 endpoint URL, returning its reliability grade, evidence of settled payments, and delivery outcomes from real paid calls.
Price / call$0.002
Success—
StatusUnknown
How this service works
Is this x402 API trustworthy? Body {url}. Returns its latest Kertivo Index endpoint trust score/grade (A, B, F, C-never-live, C-went-dark, or ungraded) and run date, plus evidence from a real paid test call: 402 status, price, payTo, settlement tx, on-chain check, HTTP status after paying, latency, schema and delivery result. Not in the index: status not_indexed. Also a public claims tally (buyer-filed disputed vs delivered), kept separate from the grade. Free grade-only: GET /trust/lookup?url=
Output
Returns the endpoint's x402 Trust Index grade (e.g. A), whether it is indexed, the run name and date, a link to raw JSONL evidence, and detailed evidence including settlement status, unpaid HTTP status (usually 402), payment tx hash, price seen in USDC, delivery result classification, and HTTP status after payment.
Example use cases
Vetting a new x402 API before integration
“I'm thinking of integrating https://api.onesource.io/api/chain/erc20-balance into my app — can you pull its x402 Trust Index grade and tell me if it has a history of actually delivering after payment?”
Comparing reliability of two x402 endpoints
“Can you check the x402 Trust Index for https://paycheck.hectichustle.workers.dev/check/verify and tell me its grade, whether it's settled payments, and what HTTP status it returned after paying?”
Auditing an x402 endpoint before recommending it
“I need to recommend a pay-per-call API to my team — look up the trust index grade for https://data.example.com/api/prices and confirm whether it's indexed, what grade it received, and if the last run showed successful delivery.”
Technical details
Endpoint
POSThttps://paycheck.hectichustle.workers.dev/trust/lookup?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, low-cost ($0.002) lookup of whether a specific x402 endpoint has been independently graded for reliability based on real paid calls. It is ideal for pre-flight vetting of x402 APIs before integrating them, or for confirming an endpoint's trust standing without running a full deep scan. Choose sibling endpoints for tx hash verification or address-poisoning checks.
Side effects
- Endpoint URL not indexed in the Trust Index — returns status 'not_indexed' with no grade
- Invalid or non-x402 URL provided — may return not_indexed or an error
- Network timeout contacting the paycheck worker
- Malformed URL input causes validation failure
- Grade may be stale if the Trust Index run is outdated
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"run": "x402 Trust Index #2",
"url": "https://api.onesource.io/api/chain/erc20-balance",
"grade": "A",
"status": "indexed",
"rawData": "https://paycheck.hectichustle.workers.dev/trust-index/raw.jsonl",
"runDate": "2026-10-12T04:01:29.345Z",
"evidence": {
"settled": true,
"unpaidStatus": 402,
"paymentTxHash": "0x0760d4ad46e5754d877e10a6473f84a0364b7d51d9d88603f407b0e201f30f47",
"priceSeenUSDC": 0.003,
"deliveryResult": "delivered_schema_ok",
"httpStatusAfterPay": 200
}
}
}Tags
x402
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