Sentinel Token Safety

Token tax check and transfer restriction scan for any ERC-20 on Base (GET ?contract=0x… or POST body {contract}). Returns buy tax, sell tax, transfer limits, cooldown rules, blacklist/whitelist functions and a trade-safety verdict. Call before any agent swaps, quotes or routes a token, to avoid tokens that eat most of the trade in fees. $0.02 USDC

Open endpoint ↗

Price per call: $0.02
Chain: eip155
Method: GET
Paid calls · 30 days: 0

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://www.0816.cn/v1/base/token-tax", { method: "GET" });
console.log(await res.json());

https://www.0816.cn/v1/base/token-tax