Retrieval and Retrieval-augmented LLMs

Privacy-respecting metasearch engine

💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

Free and Open Source, Distributed, RESTful Search Engine

This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique has a detailed notebook tutorial.

high-performance graph database for real-time use cases

Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust

Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.

🔎 Open source distributed and RESTful search engine.

Scira (Formerly MiniPerplx) is a minimalistic AI-powered search engine that helps you find information on the internet and cites it too. Powered by Vercel AI SDK!

A Simple and Universal Swarm Intelligence Engine, Predicting Anything. 简洁通用的群体智能引擎，预测万物

SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

[EMNLP2025] "LightRAG: Simple and Fast Retrieval-Augmented Generation"

AI coding assistant skill (Claude Code, Codex, OpenCode, Cursor, Gemini CLI, and more). Turn any folder of code, SQL schemas, R scripts, shell scripts, docs, papers, images, or videos into a queryable knowledge graph. App code + database schema + infrastructure in one graph.