Finance
apiKeyHTTPSCORS
Finance
Alpaca
Realtime and historical market data on all US equities and ETFs.
Alpaca API is a free Finance API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
- Authentication
- apiKey
- HTTPS
- Yes
- CORS
- Yes
- Category
- Finance
Visit documentation ↗docs.alpaca.markets
About Alpaca US
Gain seamless access to a wealth of data with Alpaca Market Data API, offering real-time and historical information for equities, options, crypto and more.
- Provider
- Alpaca US
- Website
- docs.alpaca.markets ↗
Details from docs.alpaca.markets.
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Alpaca API FAQ
Who provides the Alpaca API?
The Alpaca API is provided by Alpaca US (docs.alpaca.markets). Gain seamless access to a wealth of data with Alpaca Market Data API, offering real-time and historical information for equities, options, crypto and more.
Is the Alpaca API free?
Yes. The Alpaca API is listed in the Finance category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Does the Alpaca API require an API key?
Yes. The Alpaca API uses apiKey authentication, so you need to register for credentials before making requests.
Can I call the Alpaca API from the browser?
Yes. The Alpaca API supports CORS, so front-end JavaScript can call it directly.
Does the Alpaca API support HTTPS?
Yes. The Alpaca API is served over HTTPS, so it's safe to use in production.