Cryptocurrency — entry 041 of 53
Kraken
Kraken's REST API covers spot trading, funding, staking, and account management, with public market-data endpoints (ticker, order book, OHLC, trades) open to unauthenticated use and private trading endpoints requiring an API key plus HMAC-SHA512 request signing. A companion WebSocket API delivers real-time order-book and trade feeds for both public and private channels, all free to access beyond standard exchange 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/kraken/"><img src="https://greatapis.com/badge/kraken.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.