x402 endpoint buyer audit
x402 endpoint buyer audit - compliance, pricing, networks, metadata, schema and risk score before payment
Answeringour last check, 2026-10-20
1 of 1checks answered this week
879 msmedian answer time
$0.01listed price per call
$0.01price it asked us
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
GET https://saylorinnovations.com/api/x402check/audit
| Category | Code and developer |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-20 | valid payment request | 402 | $0.01 | 879 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"url": "https://saylorinnovations.com/api/x402/test"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"url": {
"description": "the x402 resource URL to score before an agent pays it (query)",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"contract": {
"description": "Contract address",
"type": "object"
},
"payment_options": {
"description": "Payment options",
"type": "object"
},
"pricing": {
"type": "object"
},
"reasons": {
"description": "Evidence behind the verdict or score",
"items": {
"type": "string"
},
"type": "array"
},
"score": {
"description": "Score from 0 (worst) to 100 (best)",
"type": "number"
},
"strengths": {
"items": {
"type": "string"
},
"type": "array"
},
"url": {
"description": "Canonical URL",
"type": "string"
},
"verdict": {
"description": "Overall assessment derived from the listed reasons",
"type": "string"
},
"verification": {
"type": "object"
}
},
"required": [
"url",
"verdict",
"score"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}