Semantic Search GitHub Repositories (2026) · Open Source Tools

Find code by asking what it does. A CLI for coding agents that uses Jev to discover relevant files and source context.

Zotero MCP: Connects your Zotero research library with Claude and other AI assistants via the Model Context Protocol to discuss papers, get summaries, analyze citations, and more.

21 Lessons, Get Started Building with Generative AI

Your Personal Librarian Agent. Ask anything on your computer, organize files, remember important info and files.

Local-first search across your workspace, built for humans and AI agents.

World's first open-source enterprise world model.

Open-source local AI video analyzer powered by Ollama. Visual search, automatic highlights, scene/action/object detection, audio analysis, and subtitle generation. Free, offline alternative to Twelve Labs, Runway, and Descript.

Established strong JEV based natural language to SQL performance and well-covered semantic operators for PostgreSQL with optimized cost and latency. Reusable evidence, with native execution, parallel plans and explainable embeddings in development preview.

Open-source inference server and production cluster for all the models your agent needs.

Search your computer by what's in your files: photos, PDFs, documents, recordings, videos and code. On-device on Mac, Windows and Linux, built on Google DeepMind's EmbeddingGemma 2.

The ultimate RAG for your monorepo. Query, understand, and edit multi-language codebases with the power of AI and knowledge graphs

An open-source, local-first writing workspace where you can write with Claude Code and Codex, drawing on your own sources and past work.

Search inside documents, code, and even screenshots - instantly and locally. A free, open-source file launcher with OCR, semantic search, and MCP agent access.

A lightweight, lightning-fast, in-process vector database

One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.

🧠 The memory that dreams — cross-session memory for DeepSeek Harness. Local SQLite + Markdown mirrors, autoDream consolidation, 4-way recall (keyword/vector/BM25/entity), and a memory panel. 10 model tools, MCP server, CLI.

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

Graph-Native Infrastructure for Context and Accountable AI Systems

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.

Structural code intelligence for AI agents — semantic search, knowledge graphs, and a built-in MCP server in one Rust binary. Give Claude, Cursor, and any MCP client a deep understanding of your codebase.