"LangGraph" matching MCP servers:

A zero-cost, multi-server MCP suite that provides a unified gateway and LangGraph-based automated PR-review agent, enabling code analysis, GitHub operations, and documentation generation via free-tier APIs.

Enables LLMs to analyze any codebase from a GitHub URL, producing deep reports with code snippets, line numbers, and prioritized suggestions. It orchestrates seven MCP tools through LangGraph to perform code review, onboarding, bug investigation, and complexity analysis.