Verify a URL: does it resolve, what's the final status and redirect chain, is it archived
Verify a URL: does it resolve, what's the final status and redirect chain, is it archived on the Wayback Machine, and (optionally) does expected text appear on the page. Checked via direct fetch and the Internet Archive.
5000 (raw units)
price
6
calls / 30d
3
unique payers
2026-09-17
updated
Provider
goodsong.dev · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xf3b36a95913eb2676fcdedb2ba6b0c96ade58de1",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com/blog/some-article"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"canonical": {
"archived_snapshot": {
"status": "200",
"timestamp": "20240101000000",
"url": "https://web.archive.org/web/20240101000000/https://example.com/blog/some-article"
},
"content_hash": "sha256:...",
"final_url": "https://example.com/blog/some-article",
"redirect_chain": [],
"title": "Some Article"
},
"checks": {
"archived": true,
"content_match": null,
"final_status": 200,
"redirected": false,
"resolves": true
},
"cost": {
"amount": "0.005",
"currency": "USDC"
},
"evidence": [
{
"retrieved_at": "2026-08-30T12:00:00Z",
"source": "direct_fetch",
"url": "https://example.com/blog/some-article"
},
{
"retrieved_at": "2026-08-30T12:00:00Z",
"source": "wayback_machine",
"url": "https://archive.org/wayback/available"
}
],
"latency_ms": 480,
"verdict": "confirmed"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"expected_content": {
"description": "Optional text that should appear on the page.",
"type": "string"
},
"expected_date": {
"description": "Optional ISO date (YYYY-MM-DD); checks for an archived snapshot near this date.",
"type": "string"
},
"url": {
"description": "The URL to verify. Must be http or https.",
"format": "uri",
"type": "string"
}
},
"required": [
"url"
]
},
"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": {
"example": {
"properties": {
"canonical": {
"type": [
"object",
"null"
]
},
"checks": {
"type": "object"
},
"cost": {
"type": "object"
},
"evidence": {
"type": "array"
},
"latency_ms": {
"type": "integer"
},
"verdict": {
"enum": [
"confirmed",
"contradicted",
"unknown"
],
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://goodsong.dev/verify/url" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://goodsong.dev/verify/url");
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://goodsong.dev/verify/url")
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/7663.json, and this resource appears in /discovery/resources and /discovery/search.