Claude Context MCP server is an MCP (Model Context Protocol) plugin that injects deep, semantic code search results from your entire codebase into Claude Code and other AI coding agents. It indexes your project with semantic search, retrieving relevant code chunks from millions of lines and bringing them directly into the AI’s context, enabling more accurate answers without loading the whole repository per request. The server stores your codebase in a vector database and leverages a suite of embedding providers (OpenAI, VoyageAI, Ollama, Gemini) to convert code into dense vectors. It supports hybrid search combining BM25 and dense vectors to locate pertinent code, and uses intelligent AST-based code chunking for efficient search. It is designed to be scalable, configurable, and compatible with a wide range of MCP clients and IDEs via the standard MCP protocol and stdio transport. It emphasizes cost efficiency by only including relevant code in the active context, rather than loading entire directories, and supports incremental re-indexing for changes.