Binance

Overview

The Binance API powers the world’s largest crypto exchange. Public market data is keyless — prices, order books, klines and exchange info for hundreds of pairs; trading and account endpoints require API keys with signed requests.

Note: the listing’s description (“based in China”) is outdated — Binance’s global exchange operates internationally.

Quick Start

Public market data — no key needed (verified live):

curl "https://api.binance.com/api/v3/ticker/price?symbol=BTCUSDT"

{"symbol": "BTCUSDT", "price": "67234.50"}

Order book:

curl "https://api.binance.com/api/v3/depth?symbol=BTCUSDT&limit=5"

Candlestick (klines) data:

curl "https://api.binance.com/api/v3/klines?symbol=BTCUSDT&interval=1d&limit=10"

24h ticker / exchange info:

curl "https://api.binance.com/api/v3/ticker/24hr?symbol=BTCUSDT"
curl "https://api.binance.com/api/v3/exchangeInfo"

Authentication (for trading)

• Create an API key in Binance account settings (restrict to the permissions you need — read/spot trade/margin).
• Requests are HMAC-SHA256 signed (query string + secret) with X-MBX-APIKEY header and timestamp.
• Keep the secret server-side, never in client code.
• Different regions may use different API hosts (e.g. api.binance.us for the US) — use the host for your region.

Rate Limits & Notes

• Public endpoints have per-IP weight limits (documented in the API docs); 429/403 appear on abuse.
• Websocket streams (wss://stream.binance.com) provide real-time market data.
• The listed GitHub repo is the official Spot API documentation.

FAQ

Is Binance API free? Public market data is free and keyless; trading uses the exchange’s normal fee schedule.

Do I need a key for prices? No — tickers, order books and klines are public.

How does trading auth work? HMAC-signed requests with your API secret — see the official docs.