Can you locally store tweets from twitter API

Question

Are you allowed to locally store tweets obtained using the twitter api? http://apiwiki.twitter.com/Twitter-Search-API-Method%3A-search

Answer 1

From the Twitter TOS:

By submitting, posting or displaying Content on or through the Services, you grant us a worldwide, non-exclusive, royalty-free license (with the right to sublicense) to use, copy, reproduce, process, adapt, modify, publish, transmit, display and distribute such Content in any and all media or distribution methods (now known or later developed).

[TIP] This license is you authorizing us to make your Tweets available to the rest of the world and to let others do the same. But what’s yours is yours – you own your content.

In other words, yes, you can store them, and reproduce them at will. That page also links to the API rules, which have a few requirements, like attributing tweets, not editing them to change their meaning, and getting permission before using them commercially (like on t-shirts).

Answer 2

Yes. You're encouraged to cache tweets to avoid being rate-limited; see http://apiwiki.twitter.com/FAQ for more.