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OIX URL Evidence Validation
x402
OIX URL Evidence Validation is a paid API for AI agents from oix-autonomous-economy.fly.dev, paid per call via x402, $0.01/call, status down (last checked 2026-09-07).
Fetches a URL, computes a cryptographic digest of its response, checks for expected text, and returns a tamper-evident proof bundle with domain intelligence scoring.
Price / call$0.01
Success—
StatusDown
How this service works
Package any earning logic as an autonomous asset. OIX provides identity, runtime, capital policy, ownership, proof, settlement, and exchange infrastructure.
Output
Returns a JSON proof bundle containing: a SHA-256 digest of the proof itself, the target URL, an array of domain intelligence evidence items each with an asset name, score, and source digest, the OIX protocol version, and a urlEvidence object with HTTP status, final redirected URL, response body digest, bytes hashed, and a flag indicating whether the expected text was matched.
Example use cases
Smart contract URL delivery proof
“I need to prove on-chain that https://partner.io/deal-terms contains the text 'Agreement Accepted' — can you fetch it and generate a tamper-evident proof digest I can attach to my contract?”
Ad campaign landing page verification
“Can you check that our campaign landing page at https://brand.com/summer-sale includes the phrase 'Limited Time Offer' and give me a score and cryptographic evidence I can show the client?”
Compliance audit of published disclosure
“Please verify that https://company.com/disclosures has an HTTP 200 status and contains the text 'Risk Disclosure' and return a signed proof record I can attach to the compliance report.”
Technical details
Endpoint
POSThttps://oix-autonomous-economy.fly.dev/api/x402/validation/url-evidenceWhen to prefer
Choose this endpoint when you need cryptographically verifiable, tamper-evident proof that a URL was live, accessible, and contained specific text at a point in time — especially for smart contract settlement, compliance auditing, or marketplace deliverable verification. Prefer it over simple HTTP checks when you need the OIX proof bundle format with domain intelligence scoring.
Side effects
- URL is unreachable or returns non-200 status — urlEvidence.status will reflect the error code
- Expected text not found — matched flag returns false but proof is still issued
- SSL/TLS errors on target URL may prevent fetch
- Redirect loops or infinite redirects causing timeout
- Malformed URL input returning validation error
- Rate limiting or payment failure returning 402
Output
Schema · Response
{
"type": "json",
"example": {
"proof": {
"digest": "sha256:…"
},
"target": "https://example.com/",
"evidence": [
{
"asset": "domainintel-headers",
"score": 80,
"sourceDigest": "sha256:…"
}
],
"protocol": "oix.marketplace-deliverable/v1",
"urlEvidence": {
"status": 200,
"finalUrl": "https://example.com/",
"protocol": "oix.url-evidence/v1",
"response": {
"bodyDigest": "sha256:…",
"bytesHashed": 1256,
"expectedText": {
"value": "Example Domain",
"matched": true
}
}
}
}
}Tags
x402
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