ToolVet
81trust / 100

Crypto Verify

by crypto-verify in Security & trust

x402 APIPassing, checked 2 h ago

Verify an EIP-191 personal_sign or EIP-712 typed-data signature and recover the signer address from public inputs (message + signature). Verification/recovery only — never signs.

POST https://webtools402.176-109-107-191.sslip.io/crypto/verify

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
25 ms typical, 25 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 POST "https://webtools402.176-109-107-191.sslip.io/crypto/verify" \
  -H "content-type: application/json" \
  -d '{"expected_signer":"0x19E7E376E7C213B7E7e7e46cc70A5dD086DAff2A","message":"Hello, Ethereum!","scheme":"eip191","signature":"0xb44193cab85bbebd5fd04528a1b54c684418e8c025602174fede446dec814eac0f05db58a6b7b953c1806cecba389686cdebefdfa701c29014b0c486fc5550301c"}'
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%2Fwebtools402.176-109-107-191.sslip.io%2Fcrypto%2Fverify
const res = await pay("https://webtools402.176-109-107-191.sslip.io/crypto/verify", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"expected_signer":"0x19E7E376E7C213B7E7e7e46cc70A5dD086DAff2A","message":"Hello, Ethereum!","scheme":"eip191","signature":"0xb44193cab85bbebd5fd04528a1b54c684418e8c025602174fede446dec814eac0f05db58a6b7b953c1806cecba389686cdebefdfa701c29014b0c486fc5550301c"}),
});
console.log(await res.json());

Example input

{
  "expected_signer": "0x19E7E376E7C213B7E7e7e46cc70A5dD086DAff2A",
  "message": "Hello, Ethereum!",
  "scheme": "eip191",
  "signature": "0xb44193cab85bbebd5fd04528a1b54c684418e8c025602174fede446dec814eac0f05db58a6b7b953c1806cecba389686cdebefdfa701c29014b0c486fc5550301c"
}

Example output

{
  "matches": true,
  "scheme": "eip191",
  "signer": "0x52908400098527886E0F7030069857D2E4169EE7"
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402208 ms$0.003
7 h agoPassed40225 ms$0.003