Getting Started

The NODE40 Balance API gives you programmatic access to your accounts, ledgers, and transactions. All requests are authenticated with an API key and HMAC-signed secret. This page explains how to obtain your credentials. Once you have them, see the next steps below to start using the API.

Get Your API Credentials

1. Log into your NODE40 Balance account.
2. Go to Settings → API Keys.
3. Generate an API key / API secret pair.
4. If the option isn't visible, contact your NODE40 Account Manager to enable API access.

Next Steps

With your credentials in hand, choose where to go next:

• Understand Authentication — Learn how HMAC-SHA256 request signing works if you are building a direct integration.
• Explore the API Reference — Browse the full V2 endpoint documentation with request/response schemas and live examples.
• Use an API Client — Download Postman or Insomnia collections pre-configured for the NODE40 API.
• Set up the MCP Server — Connect Claude Desktop or Claude Code to your Balance account so you can query accounts, ledgers, and transactions in plain English.
• See Request Signing Examples — Explore code samples for common signing examples in JavaScript and other languages.