is free base an open source [closed]

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is free base an open s开发者_StackOverflow社区ource api can i use it in any commercial application....

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It looks like FreeBase is licensed under the Creative Commons Attribution License which can be found here http://creativecommons.org/licenses/by/2.5/. Basically it says you are free to use it as long as you attribute the source of the data. You are also bound by their ToS located here, http://www.freebase.com/policies/tos.

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Here is the license information for Freebase:

http://www.freebase.com/policies/index/