The request is a general search for git collaboration tools, so the candidates are ranked by fit to the task. Bitbucket 1 is a Git-based code and CI/CD tool with an API and team search actions, GitLab 6 is a Git-based platform for software development, and Gitea 2 is a self-hosted Git service with code review and collaborator management. Git itself 7 is the underlying open source version control system.

1. 1

   Bitbucket Cloudbitbucket.orgverified and signed

   Git-based code and CI/CD tool for teams, with a Bitbucket API and actions to search code across a team's or workspace's repositories 111.

   WebsitePricingGet started

   official:API · Bitbucket API+78 community tools built for it

   for agents: searchTeam · GET /repositories/{workspace}/{repo_slug}/merge-base/{revspec} · searchWorkspace

2. 2

   GitLabgitlab.comwebsite read, tools not yet checked

   Git-based platform for software development covering hosting, CI/CD and collaboration, with an MCP server for agent access 6.

   WebsiteDocsPricingGet started

   official:MCP server · com.gitlab/mcp

3. 3

   Giteagitea.comverified and signed

   Self-hosted Git service for code review, team collaboration and CI/CD, with actions to add, check and list repository collaborators 212.

   WebsiteDocsPricingGet started

   +15 community tools built for it

   for agents: repoAddCollaborator · repoCheckCollaborator · repoListCollaborators

4. 4

   Gitgit-scm.comwebsite read, tools not yet checked

   Free and open source distributed version control system used for collaboration on projects of any size 7.

   WebsiteDocs

Left out: git-flow-next, because each one's own page says it is retired or discontinued.