TeamCity Integration for Bitbucket gives a capability to trigger the builds remotely in TeamCity from your Bitbucket instance. To get access to all the features offered by the app, you'll need to authorize your Bitbucket in TeamCity server using the access tokens.
How to get an access token?
First, you need to go to your TeamCity server, click on your username at the header, then go My Profile.
Here you click on the Access Tokens in the navigation bar. There you click Create access token.
Then you state the token name and its expiration date or leave it blank in case you don't want it to expire.
