SDK

Cryptonly provides an official JavaScript / TypeScript SDK for server-side integrations.

The SDK helps you work with the merchant API faster by giving you a typed client for common operations such as invoice creation, withdrawals, and account access, without having to build raw HTTP requests manually.

It is designed for trusted backend environments only and uses your accounts API key to authorize requests.

You can install the package from npm as @cryptonly/sdk.

npm install @cryptonly/sdk

GitHub

npm registry

Quick start

import { Cryptonly } from '@cryptonly/sdk';

const client = new Cryptonly({
  apiKey: process.env.CRYPTONLY_API_KEY!,
  defaultAccountId: process.env.CRYPTONLY_ACCOUNT_ID, // optional
});

const invoice = await client.invoice.create({
  amount: 100,
  fiatCurrencyCode: 'USD',
  description: 'Order #123',
  orderId: 'order_123',
});

Related pages

API referenceThe merchant API this client calls

AuthorizationThe API key the client sends

InvoicesCreate a checkout payment

WithdrawalsQuote and commit a payout