78trust / 100

Tools Verify Semaphore

by x402-gateway in Security & trust

x402 APIPassing, checked 1 h ago

Semaphore ZK Proof Verifier: Verify a Semaphore ZK proof locally using Groth16 (embedded official vkey). No external dependency. Send the proof object from @semaphore-protocol/proof generateProof(). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_semaphore.

POST https://x402.freeq.one/tools/verify_semaphore

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
342 ms typical, 481 ms slowest 5%
Last check
1 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402.freeq.one/tools/verify_semaphore" \
  -H "content-type: application/json" \
  -d '{"proof":{}}'
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%2Fx402.freeq.one%2Ftools%2Fverify_semaphore
const res = await pay("https://x402.freeq.one/tools/verify_semaphore", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"proof":{}}),
});
console.log(await res.json());

Example input

{
  "proof": {}
}

Example output

{
  "result": {}
}

Security scan

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

Recent checks

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1 h agoPassed402433 ms$0.002
5 h agoPassed402181 ms$0.002
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