Onchain Allowance

Last 30 days

Uptime

100%

Response time

230 ms typical, 230 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://dt0ur.online/api/onchain/allowance" \
  -H "content-type: application/json" \
  -d '{"chain":"base","owner":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","spender":"0x000000000022D473030F116dDEE9F6B43aC78BA3","token":"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%2Fdt0ur.online%2Fapi%2Fonchain%2Fallowance
const res = await pay("https://dt0ur.online/api/onchain/allowance", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"chain":"base","owner":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","spender":"0x000000000022D473030F116dDEE9F6B43aC78BA3","token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}),
});
console.log(await res.json());

Example input

{
  "chain": "base",
  "owner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "spender": "0x000000000022D473030F116dDEE9F6B43aC78BA3",
  "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}

Example output

{
  "allowance": 0,
  "allowance_raw": "0",
  "can_spend_full_balance": false,
  "chain": "base",
  "is_unlimited": false,
  "owner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "owner_balance": 43.286078,
  "spender": "0x000000000022D473030F116dDEE9F6B43aC78BA3",
  "symbol": "USDC",
  "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}

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