Tool detail
FractalAI x402 Notary
Issues an independent ML-DSA-65 (post-quantum) attestation certifying that a specified x402 settlement occurred; exact request fields are undocumented.
Categories: Agent trust safety, Utilities
Use when
- get a third-party post-quantum attestation of an x402 payment settlement
Not for
- not proof the settlement's terms were correct — only that it happened
Inputs
inputs undocumented
Inputs undocumented: open object without declared properties
Endpoint
- Method
POST- URL
https://fractalai.net.co/api/x402/witness
Payment
- Protocol
- x402
- Listed price
- 0.005 USDC per call 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://fractalai.net.co/api/x402/witness
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z