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.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSON, WebSocketResponses can be requested as JSON or WebSocket.
GreatAPIs Score
Score84
Authentication15/25API key required
Pricing20/20Free to use
Docs14/20Documentation URL provided
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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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.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.