Tool detail
JSON Integrity Attestation
Hashes caller-supplied JSON content and cited sources, returning an Ed25519-signed integrity, provenance and freshness receipt.
Categories: Agent trust safety
Use when
- get a signed integrity receipt for agent-produced JSON
- attest a JSON payload's provenance and freshness with cited sources
Not for
- not a fetch-and-attest of a URL — content is supplied by the caller, not fetched
Inputs
POST JSON body: content (required, any type); optional sources (array of {uri, observed_at}, max 32), ttl_seconds (1-86400)
Inputs undocumented: untyped schema node
Endpoint
- Method
POST- URL
https://phion.systems/v1/paid/attest
Payment
- Protocol
- x402
- Listed price
- 0.001 USDC per request on Base
- Payment method
- exact
- Network
- eip155:8453
- Asset
- 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.
Source
- Directory
- Coinbase x402 Bazaar
- Record
- POST https://phion.systems/v1/paid/attest
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z