Context Lens

Context Lens is an open-source Model Context Protocol (MCP) server providing fast, fully-local semantic search and retrieval-augmented generation for AI assistants. It transforms any text-based content—including local files and public GitHub repositories—into an intelligent, searchable knowledge base that can be queried using natural language. Built on LanceDB (a serverless vector database), Context Lens is privacy-first, requiring zero cloud setup or API keys. Its architecture enables AI tools and assistants to access, search, and understand the semantic content of documents, codebases, documentation, and more, making it ideal for developers, technical teams, and anyone integrating context-aware capabilities into AI workflows.