# gateway.apiosk.com Attestations

> 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 2026-09-16).

Retrieves a cryptographic attestation record identified by a specific attestation ID, returning a JWS signature and payload hash

## Facts

- Endpoint: GET https://gateway.apiosk.com/attestations/attest/att_0bcab6bede9f417ea9506afbf8814848
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gateway-apiosk-com-attestations-b3b97c35
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Iwd2tXJwAPWD15y_Rc3Me

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability gateway-apiosk-com-attestations-b3b97c35
```

Example prompt: Can you fetch the attestation record for ID att_0bcab6bede9f417ea9506afbf8814848 and give me the JWS signature and payload hash?

## When to prefer this

Use this endpoint when you need to retrieve a specific, pre-existing cryptographic attestation by its unique ID and need the JWS signature and payload hash for verification or audit purposes. Prefer this over general identity APIs when the attestation ID is already known and you need the signed proof record.

## Known failure modes

- Attestation ID not found — returns error or empty result
- Invalid attestation ID format — malformed request
- Payment not processed — 402 response if x402 payment header is missing or invalid
- Service unavailable — gateway timeout or upstream error

## How this service works

Retrieve an attestation by id with GET /attest/{id}. The gateway prefix-matches this registered path.

## Output

Returns a JSON object with the attestation ID, a boolean ok status, a JWS (JSON Web Signature) string, and a payload_hash string representing the cryptographic proof of the attested content.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gateway-apiosk-com-attestations-b3b97c35/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gateway.apiosk.com](https://www.zero.xyz/host/gateway.apiosk.com/llms.txt)