Aether

ERC-20 allowance check on Base: how much a spender is still approved to move from an owner's token balance, and whether the approval is unlimited. Run before a swap, an approve or a revoke. Input: token, owner, spender

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: POST
Paid calls · 30 days: 4

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://aether-x402.vercel.app/v1/base/allowance", { method: "POST" });
console.log(await res.json());

https://aether-x402.vercel.app/v1/base/allowance