Fetch a public API origin and audit x402 discovery, OpenAPI, pricing, llms
Fetch a public API origin and audit x402 discovery, OpenAPI, pricing, llms.txt, robots, sitemap, MCP metadata, health, endpoint counts, payment schemes, and buyer-readiness signals. This deterministic endpoint does not call an upstream model. GET variant for agents, crawlers, and wallets that prefer query parameters over a JSON body. Pay up to $0.001 per request with x402 USDC on Base.
1000 (raw units)
price
1
calls / 30d
1
unique payers
2026-06-12
updated
Provider
gpt55.558686.xyz · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1000",
"maxTimeoutSeconds": 300
},
{
"scheme": "upto",
"network": "eip155:8453",
"payTo": "0x1f0130669ca6fd02e025a984cc038f139df19a2f",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"url": "https://example.com"
},
"type": "http"
},
"output": {
"example": {
"ok": true,
"summary": "Structured x402/API buyer-readiness audit.",
"tool": "x402SiteAudit"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"anyOf": [
{
"required": [
"url"
]
},
{
"required": [
"base_url"
]
}
],
"properties": {
"base_url": {
"maxLength": 2048,
"minLength": 1,
"type": "string"
},
"include_optional": {
"type": "boolean"
},
"max_bytes": {
"maximum": 1048576,
"minimum": 4096,
"type": "integer"
},
"timeout_ms": {
"maximum": 10000,
"minimum": 1000,
"type": "integer"
},
"url": {
"maxLength": 2048,
"minLength": 1,
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": true,
"properties": {
"fetchedAt": {
"type": "string"
},
"ok": {
"type": "boolean"
},
"tool": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://gpt55.558686.xyz/v1/tools/x402-site-audit" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://gpt55.558686.xyz/v1/tools/x402-site-audit");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://gpt55.558686.xyz/v1/tools/x402-site-audit")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5823.json, and this resource appears in /discovery/resources and /discovery/search.