Use when an agent needs x402 endpoint verify
Use when an agent needs x402 endpoint verify. Returns Verify and lint a third-party x402 endpoint: probes the URL (SSRF-guarded), confirms it answers with a well-formed HTTP 402 challenge, and reports protocol-conformance findings — accepts[] completeness, facilitator price floor on Base, PAYMENT-REQUIRED header/body consistency, timeout sanity. $0.02.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
20 msmedian answer time
$0.02listed price per call
$0.02price 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
POST https://api.oblique.markets/api/v1/paid/x402-endpoint-verify
| Category | Code and developer |
|---|---|
| Provider host | api.oblique.markets |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 8 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.02 | 20 ms |
Example input (from the provider)
{
"body": {
"url": "The https URL of the x402 endpoint to verify"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"method": {
"description": "HTTP method the endpoint sells on",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"url": {
"description": "The https URL of the x402 endpoint to verify",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"accepts_count": {
"type": "integer"
},
"checked_at": {
"type": "string"
},
"findings": {
"items": {
"type": "string"
},
"type": "array"
},
"http_status": {
"type": "integer"
},
"is_x402": {
"type": "boolean"
},
"method": {
"type": "string"
},
"reachable": {
"type": "boolean"
},
"url": {
"type": "string"
},
"x402_version": {
"type": "integer"
}
},
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}