Poloniex

API

Cryptocurrency exchange API for trading and real-time market data

Overview

Poloniex API offers REST and WebSocket endpoints for accessing cryptocurrency market data (tickers, order books, trade history), executing trading operations (place/cancel orders), and managing user accounts (balances, order history). Responses are in JSON format. Public endpoints require no authentication, while private endpoints use API keys. Use cases include building automated trading bots, portfolio trackers, market analysis tools, and integrating trading features into third-party apps.

Example Integration (JavaScript)

script.js JS


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

Key Features

REST & WebSocket support
JSON response format
Public (no auth) & Private (API key) endpoints
Real-time market data
Trading operation functionality

Frequently Asked Questions

? Is Poloniex API free to use?

Yes, but rate limits apply. Basic usage of public and private endpoints is free, though higher usage tiers may have additional requirements.

? Does it require an API Key?

Public endpoints (e.g., market data) don’t need an API key, but private endpoints (trading, account data) require an API key and secret for authentication.

? What is the response format?

All 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 market and trading endpoints
⊕ Real-time WebSocket updates
⊕ Well-documented API
⊕ Supports automated trading

Cons

⊖ Rate limits on API requests
⊖ Geographic restrictions for some regions
⊖ Private endpoints require API key setup