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I want to write an app which analyses questions posted on stack Overflow. Using number of questions posted for a particular language, we may determine how popular it is.

My questions are

  1. Is this legal?
  2. Does Stack Overflow provides any such APIs to fetch data programmatically?
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    see api.stackexchange.com Commented Aug 31, 2015 at 10:39
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    Voting to leave open. Although the question mentions SO, it is relevant for any site on the SE network. Commented Aug 31, 2015 at 11:14
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    What's wrong with using SEDE (Stack Exchange Data Explorer)? There are already hundreds of queries that explore popularity of language tags. That's data.stackexchange.com Commented Aug 31, 2015 at 11:39
  • And one more: this question looks like a dupe... Commented Aug 31, 2015 at 11:39
  • Nothing wrong, just that I am new here and not aware of such options. Commented Aug 31, 2015 at 12:00

1 Answer 1

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  1. Is this legal?

Yes, as long as you follow the Stack Exchange Network Terms of Service and APIs Terms of Use

  1. Does Stack Overflow provides any such APIs to fetch data programmatically?

Yes, please visit: http://api.stackexchange.com/. Please note that there is a 'Rate Limit' set in order to prevent abuse the Stack Exchange API implements a number of throttles.

Also, as pointed by Deer Hunter in his comment:

What's wrong with using SEDE (Stack Exchange Data Explorer)? There are already hundreds of queries that explore popularity of language tags. That's data.stackexchange.com

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