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Why is there no open source Financial Stock APIs?

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Re: Why is there no open source Financial Stock APIs?

#31

You might find this useful: https://iextrading.com/developer/docs/ I work on the team at the Investors Exchange that built this API. We think financial data should be more accessible.

This looks great, too bad the historical data goes back only to 2014...

Re: Why is there no open source Financial Stock APIs?

#32

You might find this useful: https://iextrading.com/developer/docs/ I work on the team at the Investors Exchange that built this API. We think financial data should be more accessible.

So I was really excited to use this API. Documentation looks, good and simple to use. But then I ran across this:

---> • Historical data is only available for prior months, starting with January 2014

Hopefully they will update this.

As of right now I have only found eTrade provides historical data, and you have to apply for that data.

Re: Why is there no open source Financial Stock APIs?

#33

Most financial market data comes with strict licensing models. To get data from NYSE, NADAQ, CME or most other exchanges you must sign the agreements. Selling this data to vendors, news networks or end consumers is a large portion of the exchange's revenue. The more granular or quickly you want the data, the more it will cost. In addition to paying for the initial data, you are not allowed to redistribute the data, i…

I never thought exchanges were making money by selling data.

That's virtually their business model. In the modern world exchanges have 3 things on offer standardization, order entry & market data.

The final 2 are how they make their money.

Re: Why is there no open source Financial Stock APIs?

#34

You might find this useful: https://iextrading.com/developer/docs/ I work on the team at the Investors Exchange that built this API. We think financial data should be more accessible.

So I was really excited to use this API. Documentation looks, good and simple to use. But then I ran across this: ---> • Historical data is only available for prior months, starting with January 2014 Hopefully they will update this. As of right now I have only found eTrade provides historical data, and you have to apply for that data.

Thanks for checking out the API and for your compliment on our docs. Our historical data is currently limited to IEX, but we have a major update coming out soon. We plan to include years of EOD data, fundamentals, financials, earnings, technical indicators, and company info. All for free.

Re: Why is there no open source Financial Stock APIs?

#35
post #31

You might find this useful: https://iextrading.com/developer/docs/ I work on the team at the Investors Exchange that built this API. We think financial data should be more accessible.

This looks great, too bad the historical data goes back only to 2014...

Thanks for checking out the API.

Re: Why is there no open source Financial Stock APIs?

#37
post #36

You might find this useful: https://iextrading.com/developer/docs/ I work on the team at the Investors Exchange that built this API. We think financial data should be more accessible.

Is this project free for commercial usage?

Yep.

Re: Why is there no open source Financial Stock APIs?

#38

Earlier quoted context omitted.

Agree. But what is the point are we not entitled to get the data using an API from an exchange that is publicly traded. Is trading a private affair ?

Well why should you be entitled to free data from a private corporation? Just because the exchange is open to the public to purchase on it doesn't mean their data has to be free. (just my 2 cents)

Apple is publicly traded but surely you don't expect to get a real-time feed of all their transactions and revenue operations

Re: Why is there no open source Financial Stock APIs?

#39

Earlier quoted context omitted.

So I was really excited to use this API. Documentation looks, good and simple to use. But then I ran across this: ---> • Historical data is only available for prior months, starting with January 2014 Hopefully they will update this. As of right now I have only found eTrade provides historical data, and you have to apply for that data.

Thanks for checking out the API and for your compliment on our docs. Our historical data is currently limited to IEX, but we have a major update coming out soon. We plan to include years of EOD data, fundamentals, financials, earnings, technical indicators, and company info. All for free.

Very interesting, thanks! Out of curiosity, how soon is "soon" for the expanded data? If you're able to say whether it will be this/next quarter, or this/next year that would be interesting.

Re: Why is there no open source Financial Stock APIs?

#40
Even though not quite open source - I'd also recommend checking out https://www.quantopian.com and their Pipeline API - https://www.quantopian.com/help#pipeline-title. The data and the algorithms are only as good as what you can do with them and Quantopian is on to something IMHO.
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