Bitfinex

API

Cryptocurrency trading and market data API

Overview

Bitfinex API provides REST and WebSocket endpoints for cryptocurrency trading, market data, and account management. Access real-time tickers, order books, candlestick charts, and execute trades (limit/market orders). Manage positions, balances, and order history with authenticated endpoints. Responses are JSON-formatted. Ideal for building automated trading bots, portfolio trackers, market analysis tools, or integrating crypto data into financial apps. Supports Bitcoin, Ethereum, and altcoins, including margin trading and funding data features.

Example Integration (JavaScript)

script.js JS


fetch('https://docs.bitfinex.com/docs')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
WebSocket Support
JSON Responses
Trading Endpoints
Real-time Market Data
Account Management
Margin Trading Features

Frequently Asked Questions

? Is Bitfinex API free to use?

Bitfinex API offers freemium access—basic usage is free, but higher volume or advanced features may incur fees based on your plan.

? Does it require an API Key?

Yes, API key and secret authentication are mandatory for most endpoints, especially trading and account-related actions.

? What is the response format?

All Bitfinex API responses are in JSON format for both REST and WebSocket endpoints.

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Tool Info

Pricing Freemium

Category Cryptocurrency

Platform Public API

Pros

⊕ Comprehensive trading & market data
⊕ Real-time updates via WebSocket
⊕ Supports margin trading
⊕ Wide range of crypto assets

Cons

⊖ Rate-limited access
⊖ Requires API key authentication
⊖ Steeper learning curve for advanced use cases
⊖ Potential usage fees for high volume