Cryptocurrency — entry 016 of 53
CoinAPI
CoinAPI aggregates order books, trades, and OHLCV history from 370+ crypto exchanges into one normalized REST, WebSocket, and FIX interface, positioning itself as infrastructure for trading and quant use rather than a simple price lookup. A free plan with a daily call cap covers evaluation; production access is metered by request volume.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingMeteredBilled per request beyond a limited free quota.
FormatsJSON, WebSocketResponses can be requested as JSON or WebSocket.
GreatAPIs Score
Score61
Authentication15/25API key required
Pricing11/20Metered / usage-based pricing
Docs0/20No docs or spec available
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/coinapi/"><img src="https://greatapis.com/badge/coinapi.svg" alt="Scored 61 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.