Updated on Tue, 2011-11-22 15:30
Client libraries
The client libraries listed at Twitter Libraries will help implement Sign in with Twitter. Just make sure to use the /oauth/authenticate endpoint, as described in Implementing Sign in with Twitter.
Buttons
Twitter would prefer your application to use the following buttons. Feel free to download these images to host on your own servers.
| Sign in with Twitter (Darker Style) |  |
| Sign in with Twitter (Darker Style, Small) |  |
| Sign in with Twitter (Lighter Style) |  |
| Sign in with Twitter (Lighter Style, Small) |  |
A variety of buttons are also available at Image Resources. @twibs have also created a license free set of buttons which you may like to use on your site.