Cryptocurrency — entry 009 of 53
Bitmex
BitMEX pioneered the perpetual swap and remains a venue for leveraged crypto derivatives, offering a REST API alongside a real-time WebSocket feed for order books, trades, and account updates. Public market-data endpoints like the instrument and orderBook routes are open without authentication, while placing orders or reading account data requires an API key with HMAC-signed requests; there is no separate paid data tier, only trading fees.
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<a href="https://greatapis.com/api/bitmex/"><img src="https://greatapis.com/badge/bitmex.svg" alt="Scored 84 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
180 requests/minute per IP on the default REST limiter, confirmed live via a monotonically-decreasing x-ratelimit-remaining header; certain routes carry an additional 10 requests/second sub-limit per BitMEX's own docs