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

Activity

Sort by

144 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

    Other
    Active

    Graph-Native Infrastructure for Context and Accountable AI Systems

    PythonLicense: MIT
    • agent-memory
    • ai
    • ai-governance
    • ai-infrastructure
    • artificial-intelligence

    githubmeasured growthOpen source ↗

    11 740GitHub stars+678 (+6.1 %)
  8. 8

    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 %)
  9. 9

    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 %)
  10. 10

    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 %)
  11. 11

    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 %)
  12. 12

    Agent
    Active

    The agent engineering platform.

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

    githubmeasured growthOpen source ↗

    145 536GitHub stars+378 (+0.26 %)
  13. 13

    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 %)
  14. 14

    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 %)
  15. 15

    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 %)
  16. 16

    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 %)
  17. 17

    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 %)
  18. 18

    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 %)
  19. 19

    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 %)
  20. 20

    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 %)
  21. 21

    App
    Active

    Open Source AI Platform - AI Chat with advanced features that works with every LLM

    Python
    • ai
    • ai-chat
    • chatgpt
    • chatui
    • enterprise-search

    githubmeasured growthOpen source ↗

    31 898GitHub stars+99 (+0.31 %)
  22. 22

    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 %)
  23. 23

    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 %)

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 %)