Market events, sentiment, technical analysis and macro data for stocks.
XFINLAB API is a free Finance API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
A structured JSON API for market events, FinBERT sentiment, and multi-agent AI debate. Early access now open.
Details from xfinlab.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
US market data from SEC, FINRA, CFTC and the Fed: filings, insiders, earnings dates, short interest
Real time low latency Yahoo Finance API for stock market, crypto currencies, and currency exchange
The XFINLAB API is provided by XFINLAB Intelligence API (xfinlab.com). A structured JSON API for market events, FinBERT sentiment, and multi-agent AI debate. Early access now open.
Yes. The XFINLAB 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 XFINLAB API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the XFINLAB API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The XFINLAB API is served over HTTPS, so it's safe to use in production.