RAG and search: tools for developers

Retrieval-augmented tools, vector databases, embeddings and semantic search. An entry can appear under several use cases when its topics or description provide several explicit signals.

Use case

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103 entries in this view.

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

  1. 1

    Skill
    Active

    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.

    PythonLicense: Apache-2.0
    • ai-agents
    • antigravity
    • ast
    • claude-code
    • code-analysis

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/Graphify-Labs/graphify ~/.claude/skills/graphify

    114 054GitHub stars+2 404 (+2.2 %)
  2. 2

    Agent
    Active

    AI-powered virtual executive team — a single coherent executive persona backed by 8 specialist Claude agents (FastAPI + Next.js).

    Python
    • ai
    • anthropic
    • claude
    • fastapi
    • llm

    githubmeasured growthOpen source ↗

    3 488GitHub stars+1 925 (+123.2 %)
  3. 3

    App
    Active

    World's first open-source enterprise world model.

    RustLicense: Apache-2.0
    • agent-memory
    • bitemporal
    • graphrag
    • knowledge-base
    • knowledge-graph

    githubmeasured growthOpen source ↗

    2 428GitHub stars+1 596 (+191.8 %)
  4. 4

    Skill
    Active

    Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.

    PythonLicense: MIT
    • agent-skills
    • ai-agents
    • book-to-skill
    • context-engineering
    • document-processing

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/virgiliojr94/book-to-skill ~/.claude/skills/book-to-skill

    27 824GitHub stars+1 525 (+5.8 %)
  5. 5

    MCP
    Active

    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.

    PythonLicense: Apache-2.0
    • agent
    • ai
    • anthropic
    • claude-code
    • compression

    githubmeasured growthOpen source ↗

    68 629GitHub stars+784 (+1.2 %)
  6. 6

    Skill
    Active

    Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini,…

    JavaScriptLicense: Apache-2.0
    • ai
    • ai-agents
    • ai-memory
    • anthropic
    • artificial-intelligence

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add thedotmack/claude-mem

    93 043GitHub stars+717 (+0.78 %)
  7. 7

    App
    Active

    User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

    Python
    • ai
    • llm
    • llm-ui
    • llm-webui
    • llms

    githubmeasured growthOpen source ↗

    150 749GitHub stars+584 (+0.39 %)
  8. 8

    Other
    Active

    Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.

    TypeScript
    • agent
    • agentic-ai
    • agentic-framework
    • agentic-workflow
    • ai

    githubmeasured growthOpen source ↗

    154 271GitHub stars+567 (+0.37 %)
  9. 9

    Agent
    Active

    RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs

    GoLicense: Apache-2.0
    • agent-harness
    • agentic-ai
    • agentic-retrieval
    • agentic-search
    • ai

    githubmeasured growthOpen source ↗

    89 937GitHub stars+518 (+0.58 %)
  10. 10

    Agent
    Active

    The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

    PythonLicense: Apache-2.0
    • agentic-memory
    • agentic-memory-system
    • agents
    • ai
    • ai-agents

    githubmeasured growthOpen source ↗

    64 602GitHub stars+387 (+0.60 %)
  11. 11

    Agent
    Active

    The agent engineering platform.

    PythonLicense: MIT
    • agents
    • ai
    • ai-agents
    • anthropic
    • chatgpt

    githubmeasured growthOpen source ↗

    145 536GitHub stars+378 (+0.26 %)
  12. 12

    Model
    Active

    21 Lessons, Get Started Building with Generative AI

    Jupyter NotebookLicense: MIT
    • ai
    • azure
    • chatgpt
    • dall-e
    • generative-ai

    githubmeasured growthOpen source ↗

    118 967GitHub stars+298 (+0.25 %)
  13. 13

    Other
    Active

    The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

    TypeScriptLicense: Apache-2.0
    • ai
    • alternative
    • auth
    • database
    • deno

    githubmeasured growthOpen source ↗

    108 763GitHub stars+260 (+0.24 %)
  14. 14

    Other
    Active

    Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

    JavaScriptLicense: MIT
    • agent-computer
    • agent-harness
    • agent-orchestration
    • agentic-ai
    • ai-agents

    githubmeasured growthOpen source ↗

    65 486GitHub stars+178 (+0.27 %)
  15. 15

    Skill
    Active

    Open-source infrastructure that turns scattered SKILL.md files into curated, retrieval-ready agent-skill corpora—with retrieval and evaluation tooling included.

    PythonLicense: Apache-2.0
    • agent-memory
    • agent-skills
    • ai-agents
    • benchmark
    • dataset

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/EverMind-AI/SkillCorpus ~/.claude/skills/SkillCorpus

    424GitHub stars+170 (+66.9 %)
  16. 16

    MCP
    Active

    A trilingual (繁中 / English / 简中) learning roadmap for agentic AI: from LLM basics to multi-agent systems, with 240+ curated resources and hands-on examples. 中文 AI agent 學習地圖。

    PythonLicense: MIT
    • agentic-ai
    • agentic-workflows
    • ai-agent
    • ai-agents
    • awesome-list

    githubmeasured growthOpen source ↗

    6 589GitHub stars+144 (+2.2 %)
  17. 17

    Other
    Active

    Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

    RustLicense: Apache-2.0
    • ai-search
    • ai-search-engine
    • embeddings-similarity
    • hnsw
    • hybrid-search

    githubmeasured growthOpen source ↗

    34 347GitHub stars+116 (+0.34 %)
  18. 18

    Skill
    Active

    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.

    PythonLicense: Apache-2.0
    • agent-memory
    • agent-skills
    • ai
    • ai-agents
    • ai-memory

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/topoteretes/cognee ~/.claude/skills/cognee

    30 405GitHub stars+105 (+0.35 %)
  19. 19

    Other
    Active

    Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

    GoLicense: Apache-2.0
    • anns
    • cloud-native
    • diskann
    • distributed
    • embedding-database

    githubmeasured growthOpen source ↗

    45 938GitHub stars+100 (+0.22 %)
  20. 20

    Other
    Active

    【低代码v2.0，一句话即可生成整个系统】企业级AI低代码平台，一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖：AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->AI修改」开发模式，解决 Java 项目 90% 重复工作，提高效率又不失灵活。

    JavaLicense: Apache-2.0
    • activiti
    • agent
    • ai
    • antd
    • claude-code

    githubmeasured growthOpen source ↗

    47 595GitHub stars+89 (+0.19 %)
  21. 21

    Skill
    Active

    Persistent memory for Claude Code and 6 other CLI agents, stored as plain markdown in your Obsidian vault. Stop re-explaining your projects, decisions and people every session. 45 commands: hybrid semantic search, self-rewriting notes,…

    PythonLicense: MIT
    • agent-skills
    • ai-agents
    • ai-note-taking
    • ai-second-brain
    • anthropic

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/eugeniughelbur/obsidian-second-brain ~/.claude/skills/obsidian-second-brain

    4 292GitHub stars+66 (+1.6 %)
  22. 22

    Skill
    Active

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

    C++License: Apache-2.0
    • agent-skills
    • db
    • embedded
    • faiss
    • fts

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/alibaba/zvec ~/.claude/skills/zvec

    15 591GitHub stars+62 (+0.40 %)
  23. 23

    MCP
    Active

    🔥 MaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。

    PythonLicense: GPL-3.0
    • agent
    • agentic-ai
    • chatbot
    • deepseek-r1
    • knowledgebase

    githubmeasured growthOpen source ↗

    22 693GitHub stars+58 (+0.26 %)

Learning resources

Ranked by measured growth, normalized across sources. These resources remain available separately and do not take part in the main tool ranking.

  1. 1

    awesome-llm-apps

    Skill
    ActiveOpen source ↗

    100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.

    PythonLicense: Apache-2.0
    • agents
    • llms
    • python
    • rag
    github

    Install git clone https://github.com/Shubhamsaboo/awesome-llm-apps ~/.claude/skills/awesome-llm-apps

    Resourcemeasured growth
    135 793GitHub stars+1 057 (+0.78 %)
  2. 2

    ai-engineering-hub

    Agent
    ActiveOpen source ↗

    In-depth tutorials on LLMs, RAGs and real-world AI agent applications.

    Jupyter NotebookLicense: MIT
    • agents
    • ai
    • llms
    • machine-learning
    • mcp
    githubResourcemeasured growth
    37 263GitHub stars+63 (+0.17 %)