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Verify Agent

by FractalAI Know-Your-Agent in Security & trust

x402 APIPassing, checked 2 h ago

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 reputation read. ERC-8004-aligned Know Your Agent for autonomous agent-to-agent commerce. x402-native.

POST https://fractalai.net.co/api/x402/verify-agent

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
800 ms typical, 1.4 s slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://fractalai.net.co/api/x402/verify-agent" \
  -H "content-type: application/json" \
  -d '{"credential":{"claim":{},"credential_id":"…","public_key":"BASE64","signature":"BASE64"}}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffractalai.net.co%2Fapi%2Fx402%2Fverify-agent
const res = await pay("https://fractalai.net.co/api/x402/verify-agent", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"credential":{"claim":{},"credential_id":"…","public_key":"BASE64","signature":"BASE64"}}),
});
console.log(await res.json());

Example input

{
  "credential": {
    "claim": {},
    "credential_id": "…",
    "public_key": "BASE64",
    "signature": "BASE64"
  }
}

Example output

{
  "algorithm": "ml-dsa-65",
  "valid": true,
  "verified_credential_algorithm": "dilithium2"
}

Security scan

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