Context Lens - Give your LLM glasses to understand meaning, not just read words. Semantic search for AI assistants.
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# Context Lens **Give your AI the ability to understand meaning, not just match keywords.** [](https://badge.fury.io/py/context-lens) [](https://www.python.org/downloads/) [](https://opensource.org/licenses/MIT) ## What is Context Lens? Context Lens transforms any content into a **searchable knowledge base** for your AI assistant. This self-contained Model Context Protocol (MCP) server with built-in serverless vector storage (LanceDB) brings semantic search to your conversations. Point it at any content - codebases, documentation, contracts, or text files - and your AI can instantly understand and answer questions about the content. **Traditional keyword search** finds files containing specific words. Miss the exact term? Miss the content. **Context Lens** understands meaning. Ask about "authentication" and find code about login, credentials, tokens, OAuth, and access control - even if those files never use the word "authentication." ## See It In Action Want to understand how Context-Lens works? Here's the fun part: you can use Context-Lens to learn about Context-Lens.  *Demo: Using Claude Desktop with Context-Lens to index and query this repository itself. No git clone, no scrolling through code - just questions and answers.* ## Why LanceDB? Context Lens uses **LanceDB** - a modern, serverless vector database: - **🆓 Completely Free & Local** - No cloud services, API keys, or subscriptions - **⚡ Zero Infrastructure** - Embedded database, just a file on disk - **🚀 Fast & Efficient** - Built on Apache Arrow, optimized for vector search - **💾 Simple Storage** - Single file database, easy to backup or move Think of it as "SQLite for AI embeddings" - all the power of v…
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