78trust / 100

Verify Counterparty

by Agent Trust Verify in Security & trust

x402 APIPassing, checked 2 h ago

Counterparty trust verification for agents: before transacting with a domain, verify its trust artifacts — DNSSEC + DNS-AID records, agent-card, live MCP endpoint, published JWKS, OASF record, x402/commerce declarations. Returns a 0-100 trust score with per-artifact evidence. $0.25 per lookup.

GET https://mudko.com/api/x402/verify-counterparty

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
207 ms typical, 320 ms 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 GET "https://mudko.com/api/x402/verify-counterparty?domain=example.com+%28string%2C+required+-+domain+to+verify%29"
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%2Fmudko.com%2Fapi%2Fx402%2Fverify-counterparty
const res = await pay("https://mudko.com/api/x402/verify-counterparty?domain=example.com+%28string%2C+required+-+domain+to+verify%29");
console.log(await res.json());

Example input

{
  "domain": "example.com (string, required - domain to verify)"
}

Example output

{
  "artifacts": {
    "agent_card": true,
    "commerce_declared": true,
    "dns_aid": true,
    "dnssec": true,
    "jwks": false,
    "mcp_live": true,
    "oasf_record": false
  },
  "domain": "example.com",
  "paid": true,
  "trust_score": 72,
  "verdict": "verifiable"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402320 ms$0.25
6 h agoPassed402194 ms$0.25
9 h agoPassed402207 ms$0.25
13 h agoPassed402212 ms$0.25
17 h agoPassed402224 ms$0.25
20 h agoPassed402182 ms$0.25
24 h agoPassed402453 ms$0.25
28 h agoPassed402182 ms$0.25
31 h agoPassed402313 ms$0.25
36 h agoPassed402201 ms$0.25