Decode Selector

Last 30 days

Uptime

0.0%

Response time

- typical, - slowest 5%

Last check

3 h ago: Amount "0.003" is not in atomic token units

Next check

any minute now

How to call it

# bash or zsh: see the payment challenge (nothing is charged)
curl -g -i -X POST 'https://api.vextorium.com/v1/decode-selector' \
  -H 'content-type: application/json' \
  --data-raw '{"signature":"0xa9059cbb"}'

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%2Fapi.vextorium.com%2Fv1%2Fdecode-selector
const res = await pay("https://api.vextorium.com/v1/decode-selector", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: "{\"signature\":\"0xa9059cbb\"}",
});
console.log(await res.json());

Example input

{
  "signature": "0xa9059cbb"
}

Example output

{
  "code": "0xa9059cbb",
  "note": "The same code can match several signatures (collisions); the oldest is usually the real one. Source: 4byte.directory.",
  "possible": 6,
  "signatures": [
    "transfer(address,uint256)",
    "many_msg_babbage(bytes1)"
  ],
  "source": "4byte.directory",
  "type": "funcion"
}

Security scan

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

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