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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
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 2 h ago | Passed | 402 | 2.0 s | $0.03 |
| 5 h ago | Passed | 402 | 799 ms | $0.03 |
| 9 h ago | Passed | 402 | 808 ms | $0.03 |
| 13 h ago | Passed | 402 | 364 ms | $0.03 |
| 17 h ago | Passed | 402 | 857 ms | $0.03 |
| 20 h ago | Passed | 402 | 919 ms | $0.03 |
| 24 h ago | Passed | 402 | 1.4 s | $0.03 |
| 27 h ago | Passed | 402 | 358 ms | $0.03 |
| 31 h ago | Passed | 402 | 794 ms | $0.03 |
| 36 h ago | Passed | 402 | 800 ms | $0.03 |