Api/Web Service To Fetch Citations Using Pmid

Question

[Khader Shameer]

I need to collect citations for a large number of papers. Is there any API/webservice to retrieve citations using PMID ? Something like an API for Google Citations will be perfect, but am not sure if it is out.

[nlomioni]

Annoyingly, there is no Google Scholar API despite hundreds of requests for one on Google's official bug tracker (http://code.google.com/p/google-ajax-apis/issues/detail?id=109). This is likely due to licensing reasons. You'll probably have to buy a license to Web of Science or similar to do this legally (http://thomsonreuters.com/productsservices/science/scienceproducts/a-z/webofscience/).

Answer 1

[Pierre Lindenbaum]

there is a webservice for http://citedin.org/

[Dave Bridges]

how comprehensive is that, compared with Web of Science or Google Scholar?