
Insider trading data, earnings call analysis, financial statements, and more.
Aletheia 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.
Aletheia is a free, real-time financial data API, providing stock data, financials, SEC filings, fundamental analysis, insider trading, and more. Unlimited access to millions of transactions and data points, both real-time and historical.
Details from aletheiaapi.com.

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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
The Aletheia API is provided by Aletheia API (aletheiaapi.com). Aletheia is a free, real-time financial data API, providing stock data, financials, SEC filings, fundamental analysis, insider trading, and more. Unlimited access to millions of transactions and data points, both real-time and historical.
Yes. The Aletheia 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.
Yes. The Aletheia API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The Aletheia API supports CORS, so front-end JavaScript can call it directly.
Yes. The Aletheia API is served over HTTPS, so it's safe to use in production.