Open source repositories tagged with #semantic-search, ranked by health score.
Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph + autonomous consolidation.
Incremental engine for long horizon agents 🌟 Star if you like it!
A lightweight, lightning-fast, in-process vector database
Your own search engine
Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.
Fast Open-Source Search & Clustering engine × for Vectors & Arbitrary Objects × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍
Hybrid search over your Obsidian vault – CLI and MCP server
