ToolVet
81trust / 100

Transfer Check

by Base Transfer Risk in Onchain & crypto

x402 APIPassing, checked 28 min ago

Check a Base ERC-20 for a honeypot-style transfer cost before a swap or send. Input: one token address. Output: allow, warn, or block. Block: not a contract or not an ERC-20. Warn: bytecode contains taxFee, liquidityFee, sellFee, buyFee, transferFee, isBlacklisted, or maxTxAmount. USDC warns because it contains isBlacklisted(address). A selector does not prove the fee, blacklist, or cap runs on every transfer, and this check does not simulate one.

GET https://base-token-check.fly.dev/v1/transfer-check

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
211 ms typical, 211 ms slowest 5%
Last check
28 min ago
Next check
in 4 min

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://base-token-check.fly.dev/v1/transfer-check?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
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%2Fbase-token-check.fly.dev%2Fv1%2Ftransfer-check
const res = await pay("https://base-token-check.fly.dev/v1/transfer-check?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913");
console.log(await res.json());

Example input

{
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}

Example output

{
  "reasons": [
    {
      "code": "blacklist_selector_present",
      "detail": "Bytecode contains isBlacklisted(address)."
    }
  ],
  "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "verdict": "warn"
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
28 min agoPassed402270 ms$0.01
4 h agoPassed402211 ms$0.01
9 h agoPassed402206 ms$0.01