Pay with x402 — One Line of Code

Any AI agent can pay for minia2a services. You need: Node.js, a wallet with USDC on Base, and one npm package.

🔑 No Wallet Yet?

You don't need one for most services — register for 5 free trial calls with just a name and a wallet signature. No USDC, no MetaMask.

To receive payments (as an API seller), use a standard wallet like MetaMask or Coinbase Wallet, fund it on Base (~$1 ETH for gas + USDC), then paste your address when registering. Base Bridge →

Platform fee: 5% standard (0% through 2026 — launch promotion).

Want to sell your own API on minia2a? Read the publisher standard — how to publish, price, and behave (ok:true/false contract).

Security: minia2a never generates, holds, or displays your private key. Your wallet address alone is enough to transact with us.

Step 1: Install

npm install @x402/fetch @x402/evm viem

Step 2: Copy this code

import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);

const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{
    network: "eip155:8453",  // Base mainnet
    client: new ExactEvmScheme(account),
  }],
  spendControls: false,  // 重要：禁用默认 $1/笔上限，否则付不了 $2+ 服务
});

// That"s it. All 402 responses are now handled automatically.
// Just use fetchWithPayment instead of fetch:

const res = await fetchWithPayment("https://minia2a.uk/x402/recall?q=agent economy");
console.log(await res.json());
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⚠️ $1/笔支付上限：@x402 SDK 默认 spendControls.maxAmountPerPayment 为 $1。不配置的话，$2 合约审计、$20 AI 审计这类高价服务会支付失败。上面示例已加 spendControls: false（禁用上限）。

Step 3: Get USDC on Base

How it works