FractalAI x402 Notary
fractalai.net.co · 11 paid endpoints · listed 2026-10-27
Pay-per-Verify: an agent pays $0.01 to verify a post-quantum (ML-DSA-65 / Dilithium-3 or Dilithium-2, NIST FIPS 204; scheme auto-detected by size) signature over a message against a public key. A generic machine-to-machine PQC proof primitive for autonomous agents. x402-native.
livelast check 5 days ago
100%valid x402 answers, 72 h
$2.41USDC received on Base, 7 days
6distinct payers, 7 days
59.6score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | fractalai.net.co/api/x402/witness FractalAI Notary: pay for an independent ML-DSA-65 attestation of an x402 settlement. | $0.005 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/midas-attest Signed attestation of an Aave V3 position's liquidation risk right now: health factor, debt, collateral, risk tier and the observation time, read live from publ | $0.01 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/stablecoin-receipt Post-quantum ML-DSA-65 receipt for an on-chain LatAm stablecoin transfer | $0.01 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/verify-proof Pay-per-Verify: an agent pays $0.01 to verify a post-quantum (ML-DSA-65 / Dilithium-3 or Dilithium-2, NIST FIPS 204; scheme auto-detected by size) signature ove | $0.01 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/sign Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message/hash, x402-native. | $0.02 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/verify-agent Pay-per-KYA: an agent pays to verify another agent's post-quantum identity + scope credential (Dilithium-2, NIST FIPS 204), with a live FRC-55 on-chain reputati | $0.03 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/attest-decision Pay-per-Attestation: an AI agent pays to seal its own decision (input hash, output, model, timestamp) in FractalAI's post-quantum L1 — Dilithium-3 (NIST FIPS 20 | $0.05 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/attest-training Pay-per-Training-Provenance: an agent pays to seal the provenance of a dataset or training run — a C2PA-compatible manifest binding the dataset/artifact hash to | $0.05 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/issue-kya Pay-per-KYA-credential: a post-quantum-signed agent identity + scope credential — a Dilithium-3 (NIST FIPS 204) credential PLUS an additive ML-DSA-65 / Dilithiu | $0.05 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/seal Pay-per-Seal: one post-quantum (Dilithium-3) provenance seal + a self-contained ML-DSA-65/Dilithium-3 (NIST FIPS 204) signature — drand-timestamped, with on-cha | $0.05 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
| POST | fractalai.net.co/api/x402/seal-cbom Pay-per-CBOM-Seal: a drand-timestamped, re-verifiable seal over a CycloneDX CBOM (ECMA-424) cryptographic inventory — a Dilithium-3 (NIST FIPS 204) `.cbomseal` | $0.05 | Polygon, Arbitrum, eip155:42220, eip155:480, Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | fractalai.net.co/api/x402/attest-decision | 402 | 835 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 7 | $0.15 | |
| 2026-10-29 | 1 | $0.005 | |
| 2026-10-28 | 13 | $0.365 | |
| 2026-10-26 | 3 | $0.15 | |
| 2026-10-25 | 58 | $1.74 |
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Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/fractalai.net.co