Best MCP servers for code review
Code review with an agent works best when it can see both the change in context and the analysis that catches what humans miss. That means reaching the platform where the pull request lives so the agent understands the diff and discussion, plus the static-analysis and security tools that flag vulnerabilities, quality issues, and dangerous patterns. The combination lets an agent summarize a PR, surface real risks, and suggest fixes grounded in actual findings rather than vibes. The servers below cover the review platform and the analysis layer, each a real MCP server with a verified, current install config.
GitHub
GitHub
GitHub's official remote MCP server for repos, issues, pull requests, Actions, and code search.
GitHub's official server lets an agent read pull requests, diffs, comments, and CI status, the context layer for reviewing changes where most teams host their code.
Semgrep
Semgrep
Semgrep's official MCP server: scan code for security vulnerabilities, run custom rules, and pull AppSec Platform findings from your editor.
Semgrep's official server scans code for security vulnerabilities and runs custom rules, so a review surfaces concrete, rule-backed findings rather than guesses.
SonarQube
Sonar
Sonar's official MCP server brings SonarQube code quality, security, and coverage analysis into your AI agent.
Sonar's official server brings SonarQube code quality, security, and coverage analysis into the agent, adding maintainability and coverage signals to the review.
GitLab
GitLab
GitLab's official, built-in remote MCP server for issues, merge requests, pipelines, and code search via OAuth.
GitLab's server gives the same merge-request context for GitLab-hosted repos, so an agent can review changes and discussion on the GitLab platform.