AI Tools Radar › Categories › RAG & search
RAG, vector search & AI search engines
Retrieval-augmented generation, vector databases, embeddings, knowledge bases and graphs, AI search and deep research. 28 items in today's radar (data fetched 21 Oct 2026, 14:13 (Berlin time)). Categories are assigned by fixed keyword rules on GitHub topics, repo names, descriptions and Show HN titles; an item can be in several categories. How categories work.
All 393Agents & automation 196Coding assistants & dev tools 168Chat apps & assistants 28LLM inference & serving 36RAG & search 28Training & fine-tuning 11Models & research 36Image, video & audio generation 52Voice & speech 21Computer vision 8MCP, skills & plugins 146Evaluation & observability 22Data & datasets 30Local / on-device AI 45Security & sandboxing 33Learning & resources 48Other 16
Trending on GitHub today (14)
| Repository | Stars today | Total stars | Language | License | Created |
|---|---|---|---|---|---|
| 1. xerj-org/xerj Local-first search engine and MCP server for AI agents. One Rust binary indexes code, docs, logs, JSONL/CSV and PDFs for BM25 full-text, vector and hybrid search, code search without grep, agent memory and RAG. Elasticsearch-compatible API; Corpus Hub serves hundreds of reference memory corpora. | 2,660 | 12,608 | Rust | Apache-2.0 | 2026-06-30 |
| 2. Graphify-Labs/graphify Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store. | 802 | 130,921 | Python | Apache-2.0 | 2026-04-03 |
| 3. ruvnet/ruflo 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, federation, vector RAG integration, and native Claude Code / Codex / Hermes and many more Integrated | 684 | 78,078 | TypeScript | MIT | 2025-06-02 |
| 4. headroomlabs-ai/headroom Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server. | 549 | 76,987 | Python | Apache-2.0 | 2026-01-07 |
| 5. supabase/supabase The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications. | 509 | 112,618 | TypeScript | Apache-2.0 | 2019-10-12 |
| 6. Asymptote-Labs/agent-beacon The cross-harness, self-improving memory layer for AI agents. Join our community: https://discord.com/invite/zdNChS2fBu | 447 | 2,296 | Go | MIT | 2026-05-12 |
| 7. strelov1/freehire freehire — the open-source search engine for job seekers | 405 | 2,017 | Go | MIT | 2026-06-07 |
| 8. ModernRelay/omnigraph Object-storage native graph database with branching and typed ontology | 190 | 1,571 | Rust | MIT | 2026-04-10 |
| 9. microsoft/generative-ai-for-beginners 21 Lessons, Get Started Building with Generative AI | 120 | 121,805 | Jupyter Notebook | MIT | 2023-06-19 |
| 10. ItzCrazyKns/Vane Vane is an AI-powered answering engine. | 107 | 37,580 | TypeScript | MIT | 2024-04-09 |
| 11. fabio-rovai/open-ontologies Plan, apply and roll back changes to a production ontology, with a blast radius report and a proof an auditor can re-check. | 56 | 1,180 | Rust | MIT | 2026-03-09 |
| 12. NirDiamant/RAG_Techniques This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique has a detailed notebook tutorial. | 28 | 29,946 | Jupyter Notebook | Other | 2024-07-13 |
| 13. patchy631/ai-engineering-hub In-depth tutorials on LLMs, RAGs and real-world AI agent applications. | 25 | 38,401 | Jupyter Notebook | MIT | 2024-10-21 |
| 14. oracle-devrel/oracle-ai-developer-hub Technical resources for AI developers to build applications, agents, and systems using Oracle AI Database and OCI services | 5 | 4,444 | Jupyter Notebook | none found | 2024-01-16 |
Trending on GitHub this week (4)
| Repository | Stars this week | Total stars | Language | License | Created |
|---|---|---|---|---|---|
| 1. xerj-org/xerj Local-first search engine and MCP server for AI agents. One Rust binary indexes code, docs, logs, JSONL/CSV and PDFs for BM25 full-text, vector and hybrid search, code search without grep, agent memory and RAG. Elasticsearch-compatible API; Corpus Hub serves hundreds of reference memory corpora. | 8,074 | 12,608 | Rust | Apache-2.0 | 2026-06-30 |
| 2. ruvnet/ruflo 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, federation, vector RAG integration, and native Claude Code / Codex / Hermes and many more Integrated | 3,143 | 78,078 | TypeScript | MIT | 2025-06-02 |
| 3. ModernRelay/omnigraph Object-storage native graph database with branching and typed ontology | 254 | 1,571 | Rust | MIT | 2026-04-10 |
| 4. NirDiamant/RAG_Techniques This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique has a detailed notebook tutorial. | 92 | 29,946 | Jupyter Notebook | Other | 2024-07-13 |
New repos of the last 30 days (10)
| Repository | Age | Total stars | Language | License | Created |
|---|---|---|---|---|---|
| 1. ARahim3/DigUp 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. | 12 d | 5,295 | Swift | MIT | 2026-10-08 |
| 2. dzhng/jevgrep Find code by asking what it does. A CLI for coding agents that uses Jev to discover relevant files and source context. | 25 d | 2,833 | TypeScript | MIT | 2026-09-26 |
| 3. amitshekhariitbhu/ai-system-design AI System Design - Learn how to design AI systems built on LLMs, RAG, and AI Agents step by step. | 26 d | 731 | Markdown | Apache-2.0 | 2026-09-25 |
| 4. breakstageaxe61/genspark-claw 🦀⚡ Community skill pack & CLI for Genspark Claw, OpenClaw & Hermes agents — 5 production-ready SKILL.md skills (deep research, reports, slides, browser automation, AI call prep), zero-dependency Node.js installer, MCP server, one-line install | 25 d | 547 | JavaScript | MIT | 2026-09-26 |
| 5. LingCore/WinShun Win顺：免费开源的 Windows 快速搜索启动器。双击 Ctrl，拼音秒搜文件、全文搜索 Word/Excel/PDF、剪贴板历史（代替 Win+V）、对话框搜索、任务栏搜索、插件、AI 助手 MCP。Free Windows search launcher: pinyin file search, full-text search, clipboard history, MCP server. Everything/Listary alternative. | 13 d | 475 | C++ | MIT | 2026-10-08 |
| 6. Graphicle-AI/graphicle Code graph and memory for your coding agents, in one Rust program. For Claude Code, Codex, Cursor and any MCP client. | 6 d | 334 | Rust | Apache-2.0 | 2026-10-14 |
| 7. FengZhenfei/carrel Ontology-Augmented Generation for AI agents. | 23 d | 322 | Python | MIT | 2026-09-28 |
| 8. Sheltercosmo/jev4pg Established strong JEV based natural language to SQL performance and well-covered semantic operators for PostgreSQL(PG) with optimized cost and latency. Reusable evidence, with native execution, parallel plans and explainable embeddings in development preview. | 28 d | 279 | Python | Apache-2.0 | 2026-09-23 |
| 9. heaven999b/hello-agent-system 👋 Hello Agent System — learn enterprise AI agent system design by building every production layer from scratch. 17 bilingual lessons (EN/中文) with tested exercises: tools, architectures, reliability, security, evals, distributed execution, cost, RAG, release ops. 企业级 Agent 系统设计训练营 | 24 d | 276 | Python | MIT | 2026-09-27 |
| 10. crow-hq/llm-wiki-v2 Turn your documents into a Markdown wiki you can read, that answers with citations. Works with any LLM provider, Ollama included. CROW classifier routing: 89% right note vs 62%, 2.1× faster ingest, 68% fewer tokens. | 26 d | 244 | Python | AGPL-3.0 | 2026-09-24 |
AI launches on Show HN (4)
| Show HN post | Points | Comments | Posted |
|---|---|---|---|
| 1. Show HN: AI search for every photo and every frame of video on macOS HN discussion · by allenleee | 184 | 74 | 2026-10-04 |
| 2. Show HN: AI·rete·RAG – a Rete rule engine decides, RAG explains why HN discussion · by ZaharaHussain | 46 | 11 | 2026-09-22 |
| 3. Show HN: Strata – an expressive semantic layer that can say no to your LLM HN discussion · by ajoski9 | 25 | 18 | 2026-09-30 |
| 4. Show HN: DocFlare AI – Open-source docs chatbot on Cloudflare's free tier HN discussion · by pierreneter | 10 | 0 | 2026-10-08 |