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.

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139 entries in this view.

Tool ranking

Ranked by normalized popularity 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

    Other
    Active

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

    TypeScriptLicense: Apache-2.0
    • ai-agents
    • bm25
    • cli
    • code-search
    • full-text-search

    githubestimated momentumOpen source ↗

    2 174GitHub stars—
  2. 2

    MCP
    Active

    A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.

    GoLicense: Apache-2.0
    • a2a
    • a2a-protocol
    • ag-ui
    • agent
    • agent-framework

    githubmeasured growthOpen source ↗

    1 763GitHub stars+16 (+0.92 %)
  3. 3

    Skill
    Active

    Hivemind turns your traces into reusable skills across agents

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

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add activeloopai/hivemind

    1 594GitHub stars+6 (+0.38 %)
  4. 4

    Skill
    Dormant

    小遥搜索，听懂你的话、看懂你的图，用AI找到本地任何文件。让搜索像聊天一样简单。XiaoyaoSearch: Understands your words, reads your images, finds any local file with AI. Making search as easy as chatting.

    Python
    • agent-skills
    • ai-search
    • document-search
    • file-search
    • local-search

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/dtsola/xiaoyaosearch ~/.claude/skills/xiaoyaosearch

    1 085GitHub stars+2 (+0.18 %)
  5. 5

    Skill
    Active
    Python
    • agent
    • agent-memory
    • agent-skills
    • agentic
    • dsh-plugin

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/mindscale-noah/MindMemOS ~/.claude/skills/MindMemOS

    975GitHub stars+13 (+1.4 %)
  6. 6

    Other
    Active

    Nuwax Agent OS - An enterprise-grade AI Agent Development and Operation Platform - Providing a complete solution for agent creation and distribution, knowledge base management, model proxy, memory system, and plugin ecosystem.

    TypeScriptLicense: Apache-2.0
    • a2a
    • agent
    • agent-os
    • agent-sandbox
    • agentic

    githubmeasured growthOpen source ↗

    878GitHub stars+4 (+0.46 %)
  7. 7

    CLI
    Active

    Rust-powered code intelligence CLI for AI coding agents. Builds call graphs and hybrid semantic search indexes (Dense + Sparse + RRF + Reranker) across 7 languages. Ships as native MCP tools for Claude Code and Codex CLI.

    RustLicense: MIT
    • agent-tools
    • ai-development-tools
    • ai-tools
    • bm25
    • call-graph

    githubmeasured growthOpen source ↗

    764GitHub stars-1 (-0.13 %)
  8. 8

    MCP
    Active

    Search your past AI coding sessions — Claude Code, Codex, Cursor and 17 more. Indexes the session history they already wrote to disk, including months from before you installed it, and recalls it in any of them. No LLM, no embeddings, one…

    GoLicense: MIT
    • agent-memory
    • ai-memory
    • claude-code
    • claude-code-hooks
    • claude-code-plugins

    githubmeasured growthOpen source ↗

    742GitHub stars+7 (+0.95 %)
  9. 9

    Skill
    Active

    ReachAI企业级智能体开发平台：快速、安全完成已有业务系统智能化改造，让 AI 在 OA、ERP、CRM 等原系统中查数据、填表单、办业务。ReachAI: Quickly and securely bring AI to existing enterprise systems, enabling AI to query data, fill out forms, and execute business tasks directly within OA, ERP,…

    JavaLicense: MIT
    • a2a
    • agent
    • agent-framework
    • agent-skills
    • agents

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/w8123/EnterpriseAgentFramework ~/.claude/skills/EnterpriseAgentFramework

    670GitHub stars+69 (+11.5 %)
  10. 10

    Other
    Active

    The .NET library to build AI agents with 30+ built-in connectors.

    C#License: MIT
    • a2a
    • agent
    • agent-framework
    • agent-orchestration
    • agent2agent

    githubmeasured growthOpen source ↗

    638GitHub starsstable
  11. 11

    Skill
    Active

    Give your AI a real, persistent memory. The open-source system plus templates that turn an Obsidian vault into your AI's working memory. No vector database, just markdown.

    • agent-memory
    • ai
    • ai-agents
    • ai-memory
    • anthropic

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/jaredrhod/ai-memory-vault ~/.claude/skills/ai-memory-vault

    615GitHub stars+23 (+3.9 %)
  12. 12

    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

    493GitHub stars+205 (+71.2 %)
  13. 13

    Agent
    Dormant

    Aser is a lightweight, self-assembling AI Agent frame.

    PythonLicense: MIT
    • a2a-protocol
    • agent
    • agents
    • ai
    • ai-agent

    githubmeasured growthOpen source ↗

    471GitHub stars-1 (-0.21 %)
  14. 14

    MCP
    Active

    AI-powered code indexer with semantic search and knowledge graphs

    RustLicense: Apache-2.0

      mcpmeasured growthOpen source ↗

      Install claude mcp add octocode -- npx @muvon/octocode

      459GitHub starsstable
    • 15

      MCP
      Active

      Context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 and semantic retrieval. Progressive Disclosure. No vector DB.

      TypeScriptLicense: MIT
      • accuracy
      • agents
      • claude-skills
      • context
      • harness

      githubmeasured growthOpen source ↗

      434GitHub stars+5 (+1.2 %)
    • 16

      Skill
      Active

      Deepdive skill for Claude Code — 12-phase research pipeline: plan-review gate, parallel sub-agent search, claims-ledger triangulation with dissent protection, relevance × authority evidence filter, multi-angle red team, four-layer citation…

      PythonLicense: MIT
      • agent-skills
      • agentic-workflow
      • ai-research-assistant
      • anthropic
      • citation-verification

      githubmeasured growthOpen source ↗

      Install git clone https://github.com/Socialpranker/deepdive ~/.claude/skills/deepdive

      393GitHub stars+5 (+1.3 %)
    • 17

      Skill
      Active

      FoJin-powered Buddhist AI persona framework — source-grounded, boundary-aware, fidelity-tested, runtime-ready.

      PythonLicense: MIT
      • agent-skills
      • ai-persona
      • bdrc
      • buddhism
      • chinese-buddhism

      githubmeasured growthOpen source ↗

      Install git clone https://github.com/xr843/Master-skill ~/.claude/skills/Master-skill

      382GitHub stars+5 (+1.3 %)
    • 18

      MCP
      Active

      Local-first RAG server for developers. Semantic + keyword search for code and technical docs. Works with MCP or CLI. Fully private, zero setup.

      TypeScriptLicense: MIT
      • agent-skills
      • cli-tool
      • developer-tools
      • hybrid-search
      • local-first

      githubmeasured growthOpen source ↗

      381GitHub stars+5 (+1.3 %)
    • 19

      MCP
      Active

      Config-driven engine that turns JSON into production-grade AI agents. Multi-agent orchestration, 12+ LLM providers, MCP/A2A protocols, RAG, persistent memory, and enterprise compliance (EU AI Act, GDPR, HIPAA). Built on Quarkus.

      JavaLicense: Apache-2.0
      • a2a
      • ai-agents
      • ai-orchestration
      • chatbot
      • conversation-memory

      githubmeasured growthOpen source ↗

      372GitHub stars+1 (+0.27 %)
    • 20

      MCP
      Active

      Local-first document management and semantic search for AI coding agents

      TypeScriptLicense: MIT

        mcpmeasured growthOpen source ↗

        Install claude mcp add mcp-documentation-server -- npx @andrea9293/mcp-documentation-server

        342GitHub starsstable
      • 21

        MCP
        Active

        Universal MCP Server with advanced AI memory capabilities and semantic search.

        ↓ 913 downloads/weekPythonLicense: Apache-2.0

          mcpmeasured growthOpen source ↗

          Install claude mcp add marm-mcp-server -- uvx marm-mcp-server

          339GitHub starsstable
        • 22

          Other
          Active

          An intentionally vulnerable OWASP LLM Top 10 training platform for AI Security, Prompt Injection, RAG Security, Agent Security, and GenAI penetration testing.

          PythonLicense: MIT
          • agent-security
          • ai-security
          • ai-security-tool
          • artificial-intelligence
          • ctf

          githubmeasured growthOpen source ↗

          311GitHub stars+6 (+2.0 %)
        • 23

          MCP
          Active

          AURA is a production-tested SRE agent platform you can deploy in minutes. AURA handles the guardrails, APIs, state management, streaming, and failure handling required to put AI to work safely on production infrastructure.

          RustLicense: Apache-2.0
          • a2a
          • ai-agent-framework
          • ai-agents
          • ai-sre
          • aiops

          githubmeasured growthOpen source ↗

          291GitHub stars+33 (+12.8 %)

        Learning resources

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

        1. 1

          azure-openai-llm-notes

          Skill
          ActiveOpen source ↗

          A curated collection of resources for 🌌 Azure OpenAI, 🦙 LLMs (+RAG, Agents). Monthly Updates.

          Python
          • agent
          • agent-framework
          • agent-skills
          • ai-engineering
          • ai-tools
          github

          Install git clone https://github.com/kimtth/azure-openai-llm-notes ~/.claude/skills/azure-openai-llm-notes

          Resourcemeasured growth
          410GitHub starsstable
        2. 2

          agent-systems-handbook

          Agent
          ActiveOpen source ↗

          A practical AI agents handbook covering agent systems, agentic workflows, LangGraph, MCP/A2A, context engineering, agent memory, evaluation, observability, and multi-agent architecture. Current trend focus: Gemini Interactions API and…

          MDX
          • a2a
          • agent-framework
          • agent-memory
          • agentic-ai
          • agentic-workflow
          githubResourcemeasured growth
          316GitHub stars+3 (+0.96 %)