Finnhub API provides institutional-grade financial data to investors, fintech startups and investment firms. We support real-time stock price, global fundamentals and alternative data. https://finnhub.io/docs/api
If you are looking for historical data of delisted stock, we will have that up soon :) No worry. Feel free to open another issue if you have any questions.
I am trying to get the quote for RedHat (RHT) with no luck. I'm using this api call:
https://finnhub.io/api/v1/quote?symbol=RHT&token=api_token