One of the most popular Twitter clients for Windows is shutting down effective immediately. MetroTwit is the latest client to fall victim to the microblogging platform’s access token limit implemented in August 2012 to prevent third-party clients from becoming too popular.

In a blog post on the matter, MetroTwit said they are preemptively retiring the application because Twitter’s API will prevent existing users from accessing it once the token limit has been crossed. Developer Long Zheng told The Verge that they reached out to Twitter after the token limit announcement was made but they didn’t offer to extend their cap.

Effectively immediately, the company is removing the MetroTwit for Desktop installer and MetroTwit for Windows 8 Store listing to ensure that the app remains usable for existing users. That said, the app will continue to work for those that already have it but the company won’t be issuing any further updates for it.

MetroTwit was born out of a Photoshop mockup in early 2010 and has since amassed more than 400,000 users. It’s not the first client to shut down due to Twitter’s token limit, however, as both Rowi and Carbon have vanished in recent memory.

Third-party app Tweetium is still available for Windows 8 although it’s likely to be the next to kick the bucket. Twitter’s own TweetDeck app might soon be the only worthwhile option unless the company changes their token restrictions.