Code Review & Pull Request MCP Servers — SonarQube, Codacy, CodeRabbit, Graphite GT, GitLab MR, Community PR Reviewers
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At a glance: Code review is the workflow where AI assistants and MCP can have the highest single impact - review capacity is the bottleneck in modern software development. SonarQube MCP (442 stars, native in SonarQube Cloud) leads. Codacy MCP (56 stars, MIT) covers SAST, secrets, coverage. Graphite GT MCP enables AI-driven stacked PR creation. CodeRabbit dominates AI review but as an MCP client, not server. 15+ servers across 5 subcategories. Rating: 3.5/5.