cryptoinfra

Official TypeScript client for the cryptoinfra API — custodial wallets, USDT/USDC payouts, hosted payment links, cross-chain swaps and crypto debit cards behind one key. Free forever; the platform earns a small take-rate only when money moves.

npm install cryptoinfra

import { CryptoInfra } from 'cryptoinfra';

const ci = new CryptoInfra({ apiKey: process.env.CRYPTOINFRA_KEY! });

// Give a customer deposit addresses on every enabled chain
const user = await ci.users.create('customer-42');

// Collect a payment with a hosted checkout page
const link = await ci.paymentLinks.create({
  title: 'Order #1042',
  asset_id: 'usdt_trc20',
  amount: '25',
});
console.log(link.url); // → https://merchant.cryptoinfra.build/pay/…

// Pay out — single or batch (idempotency keys make retries safe)
await ci.withdrawals.create({
  external_user_id: 'customer-42',
  asset_id: 'usdt_trc20',
  to_address: 'T…',
  amount: '10',
  idempotency_key: 'payout-2026-08-29-42',
});

• Docs / API reference: https://merchant.cryptoinfra.build/api-docs
• Sign up (self-serve, no KYC): https://merchant.cryptoinfra.build/signup
• Support: [email protected] · Telegram @gustavocoderr

Zero dependencies (plain fetch, Node ≥ 18). Errors throw CryptoInfraError carrying the API's own code and HTTP status.