Is this x402 API trustworthy?
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=
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://paycheck.hectichustle.workers.dev/trust/lookup
| Category | Market data |
|---|---|
| Provider host | paycheck.hectichustle.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 7 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.002 | 590 ms |
Example input (from the provider)
{
"body": {
"url": "https://api.onesource.io/api/chain/erc20-balance"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"url": {
"description": "Absolute http(s) URL of the x402 endpoint (query string ignored)",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"evidence": {
"properties": {
"deliveryResult": {
"type": "string"
},
"httpStatusAfterPay": {
"type": [
"integer",
"null"
]
},
"paymentTxHash": {
"type": [
"string",
"null"
]
},
"priceSeenUSDC": {
"type": [
"number",
"null"
]
},
"settled": {
"type": "boolean"
},
"unpaidStatus": {
"type": [
"integer",
"null"
]
}
},
"type": "object"
},
"grade": {
"type": [
"string",
"null"
]
},
"rawData": {
"type": "string"
},
"run": {
"type": "string"
},
"runDate": {
"type": [
"string",
"null"
]
},
"status": {
"enum": [
"indexed",
"not_indexed"
],
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"url",
"status",
"grade"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}