In our cloud version, we only support GitHub and Bitbucket.
We used to support the possibility to add other git repos to Codacy manually, but as part of a process to improve our performance, that option is no longer available. However, projects that were added before the 12th Feb 2019 will continue to be analyzed as usual.
However, on Codacy Self-hosted, we do offer full integration with GitLab. For more information about Codacy on-premise option please check here.