> Are there any good financial api/datasets out there available for financial data?

I assume you mean other than the usual suspects ? ;-)

Try IEX Cloud or Quandl, both are quite US-centric although Quandl does have a small amount of international stuff.

But really, for consistent quality and coverage its hard to escape the usual suspects.

P.S. Don't forget to read the small print properly ! Many companies make a differentiation between internal use and publishing on the web for others to consume.

Not OP, but I am in charge of engineering and operating a high-performance quantitative algorithm engine at my company and I can wholeheartedly recommend https://polygon.io.

We continously pull their whole dataset in one minute intervals as well as receive real-time feeds for the whole universe over websockets and they haven't complained once.