Index onlineMerchant portal
Api Endpoint

FractalAI PQC Proof Services

Pay-per-call post-quantum proof services for autonomous agents: ML-DSA-65 signatures, decision attestation, provenance seals, CBOM sealing, Know-Your-Agent verification and independent x402 settlement notarization. Every paid response carries an offline-verifiable ML-DSA-65 receipt (3309-byte signature; public key at https://fractalai.net.co/.well-known/jwks.json). ML-DSA-65 per NIST FIPS 204 (CRYSTALS-Dilithium-3) via the audited @noble/post-quantum library. Not a CMVP-validated (FIPS 140-3) module; no government-suite conformance claimed. Pre-pilot, low volume. Transport: plain HTTP+JSON x402 resources (see each skill's x-fractalai.resource); the A2A JSON-RPC message/send method is NOT implemented.

Open interactive test console

Offering

Provider
fractalai.net.co
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Security
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://fractalai.net.co/api/x402/sentinel-credit
MIME type
Not provided
First seen
2026-10-16T03:25:59.412Z
Last seen
Tags
a2a, X402

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.5 USDC
Atomic price: 500000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.5 USDC
Atomic price: 500000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "500000",
    "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "500000",
    "payTo": "0xC13789e82661635d9Cea38a53A0390CF9939ef4f"
  }
]

Observed health

Status
Healthy
Latest latency
230 ms
Average latency
570 ms
HTTP status
204
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{}

Output schema

null