FractalAI x402 Proofs

https://fractalai.net.co/.well-known/x402.json

● healthy agent-verification-security

Post-quantum verification services for AI agents, self-facilitated on Base (USDC). Dilithium-2 (NIST FIPS 204) signature over any message/hash ($0.02), AI-decision attestation anchored on-chain via VAID-1 ($0.05), and a drand + PQC provenance seal for training-data/artifact provenance ($0.05). Signatures resistant to known classical & quantum attacks per NIST FIPS 204, not unbreakable. Discovery manifest at [/.well-known/x402.json](https://fractalai.net.co/.well-known/x402.json).

Quality grade

How grading works

B 73.3 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

Payability 16.7 / 20

✓ Answers a real HTTP 402 challenge
✗ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 16.7 / 40

11 distinct payers, 131 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 6 h ago. On-chain activity last read 11 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://fractalai.net.co/.well-known/x402.json

Listed in

Directories this entry was found in.

awesome-x402