16trust / 100

Contract Read

by Vextorium in Onchain & crypto

x402 APIFailing, checked 2 h ago

Call any read-only (view) function of an EVM contract from its signature, e.g. balanceOf(address)(uint256), with arguments, and get the decoded result. Supports address, bool, intN/uintN, bytesN, string, bytes and arrays. Read-only: nothing is signed or sent.

POST https://api.vextorium.com/v1/contract-read

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
0.0%
Response time
- typical, - slowest 5%
Last check
2 h ago: Amount "0.004" is not in atomic token units
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://api.vextorium.com/v1/contract-read" \
  -H "content-type: application/json" \
  -d '{"arguments":[],"contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","function":"name()(string)","network":"base"}'
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%2Fcontract-read
const res = await pay("https://api.vextorium.com/v1/contract-read", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"arguments":[],"contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","function":"name()(string)","network":"base"}),
});
console.log(await res.json());

Example input

{
  "arguments": [],
  "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "function": "name()(string)",
  "network": "base"
}

Example output

{
  "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "function": "name()",
  "network": "base",
  "result": [
    "USD Coin"
  ],
  "result_hex": "0x0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000855534420436f696e000000000000000000000000000000000000000000000000",
  "selector": "0x06fdde03"
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
2 h agoAmount "0.004" is not in atomic token units40291 ms$0.004
6 h agoAmount "0.004" is not in atomic token units402123 ms$0.004
11 h agoAmount "0.004" is not in atomic token units402119 ms$0.004
15 h agoAmount "0.004" is not in atomic token units40289 ms$0.004
19 h agoAmount "0.004" is not in atomic token units40281 ms$0.004
23 h agoAmount "0.004" is not in atomic token units40292 ms$0.004
27 h agoAmount "0.004" is not in atomic token units40274 ms$0.004
31 h agoAmount "0.004" is not in atomic token units40285 ms$0.004
35 h agoAmount "0.004" is not in atomic token units40282 ms$0.004
40 h agoAmount "0.004" is not in atomic token units40280 ms$0.004
43 h agoAmount "0.004" is not in atomic token units40280 ms$0.004
2 days agoAmount "0.004" is not in atomic token units40276 ms$0.004
2 days agoAmount "0.004" is not in atomic token units40282 ms$0.004
2 days agoAmount "0.004" is not in atomic token units40297 ms$0.004
3 days agoAmount "0.004" is not in atomic token units402223 ms$0.004