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gateway.apiosk.com Attestations
x402
gateway.apiosk.com Attestations is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Hashes a JSON payload and creates a cryptographically signed attestation (JWS) with optional validation results, persisting the receipt.
Price / call$0.02
Success—
StatusUnknown
How this service works
Create a signed JWS receipt containing payload hash, result hash, timestamp and validation results.
Output
Returns an attestation object with a unique attestation ID (e.g. att_example), a boolean ok status, a JWS-encoded cryptographic signature over the payload, a SHA hash of the payload, and a persisted flag confirming the receipt was stored.
Example use cases
Example prompt
“Create a cryptographic attestation for this JSON payload: {"order_id": "ORD-9921", "amount": 250.00, "status": "approved"} and include the validation result {"passed": true, "checks": ["schema", "fraud"]} in the receipt so I have a signed, persisted proof.”
Technical details
Endpoint
POSThttps://gateway.apiosk.com/attestations/attestWhen to prefer
Use this endpoint when you need a cryptographically signed, persisted attestation of a JSON payload — for audit trails, compliance records, or tamper-proof proofs of data at a point in time. Prefer this over simple hashing when you need a JWS signature and a persistent receipt you can reference by ID later.
Side effects
- Invalid or non-parseable JSON payload string returns an error
- Missing required payload field results in a 400-level error
- Payment not completed (x402 flow) results in 402 Payment Required
- Service unavailable or persistence failure returns ok:false
- Malformed validation_results string may cause parsing errors
Tags
x402
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