Looking up book title with ISBN [closed]

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Is there a free way to look up the title of a book using its ISBN number? I know there is isbndb.com, but they limit you to 500 look ups per day. Also I noticed there is the Google Books API, is there a limit with Goo开发者_Python百科gle Books?

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On the Google API's Console, it mentions a "Courtesy limit: 1,000 queries/day". There is nothing that states what happens if you go over.

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Take a look at https://sourceforge.net/projects/isbntools/files/latest/download.

Or if you are a developer at https://pypi.python.org/pypi/isbntools.

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No. Google does not specifically limit the numbber of lookups. In the TOS they do use the standard laywerspeak, "Google, at its sole discretion, may limit the amount of Google Books Content it delivers to you. ", but I'm sure if you, "Aren't being evil", as they say, you should be good.

Terms of service: http://code.google.com/apis/books/terms.html (which read a lot like the google maps API TOS).