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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147 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

    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 %)
  2. 2

    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 %)
  3. 3

    Agent
    Active

    FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, letting you easily develop and deploy complex…

    TypeScript
    • agent
    • claude
    • deepseek
    • llm
    • mcp

    githubmeasured growthOpen source ↗

    29 548GitHub stars+55 (+0.19 %)
  4. 4

    Other
    Active

    Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for…

    PythonLicense: Apache-2.0
    • agent-framework
    • agentic-ai
    • agentic-rag
    • agents
    • ai

    githubmeasured growthOpen source ↗

    26 400GitHub stars+54 (+0.20 %)
  5. 5

    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

    638GitHub stars+54 (+9.2 %)
  6. 6

    Skill
    Active

    Agent Skills for NVIDIA products — install into Claude Code, Codex, and other coding agents to run Physical AI, robotics, simulation, CUDA, and RAG workflows end to end.

    PythonLicense: Apache-2.0
    • agent-skills
    • agentic-ai
    • ai-agents
    • claude-code
    • codex

    githubmeasured growthOpen source ↗

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

    3 172GitHub stars+53 (+1.7 %)
  7. 7

    Other
    Active

    Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

    TypeScriptLicense: Apache-2.0
    • agent-workflow
    • agentic-workflow
    • agents
    • ai
    • aiagents

    githubmeasured growthOpen source ↗

    29 529GitHub stars+49 (+0.17 %)
  8. 8

    Skill
    Active

    AI-agent skill producing reusable Markdown from PDFs. It turns flowcharts, diagrams, and charts into text beside each caption instead of empty links. It checks an earlier conversion against the PDF and fixes misread or missing parts. Long…

    PythonLicense: AGPL-3.0
    • agent-skills
    • ai-agents
    • codex
    • codex-skill
    • document-conversion

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/libnyx/LT2MD ~/.claude/skills/LT2MD

    89GitHub stars+38 (+74.5 %)
  9. 9

    Library
    Active

    Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you…

    Python
    • ai
    • api
    • chatbot
    • chatgpt
    • database

    githubmeasured growthOpen source ↗

    39 475GitHub stars+37 (+0.09 %)
  10. 10

    Agent
    Active

    Incremental engine for long horizon agents 🌟 Star if you like it!

    RustLicense: Apache-2.0
    • agentic-data-framework
    • ai
    • ai-agents
    • change-data-capture
    • codebase-intelligence

    githubmeasured growthOpen source ↗

    11 453GitHub stars+32 (+0.28 %)
  11. 11

    Skill
    Active

    A persistent, unified memory layer for all your AI agents (e.g. Claude Code, Codex, DSH), backed by Markdown and Milvus.

    PythonLicense: MIT
    • agent
    • agent-memory
    • ai-agents
    • claude-code
    • claude-code-plugin

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add zilliztech/memsearch

    2 546GitHub stars+27 (+1.1 %)
  12. 12

    MCP
    Active

    Search arXiv papers, download full text, semantic search, citation graphs, and alerts via MCP.

    PythonLicense: Apache-2.0

      mcpmeasured growthOpen source ↗

      Install claude mcp add arxiv-mcp-server -- uvx arxiv-mcp-server

      3 091GitHub stars+26 (+0.85 %)
    • 13

      Other
      Active

      The #1 AI Harness for Building Resumes, PDFs, Cover Letters & more, locally with 100+ LLMs support.

      TypeScriptLicense: Apache-2.0
      • applicant-tracking-system
      • ats
      • hacktoberfest
      • machine-learning
      • natural-language-processing

      githubmeasured growthOpen source ↗

      28 316GitHub stars+22 (+0.08 %)
    • 14

      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 759GitHub stars+18 (+1.0 %)
    • 15

      Skill
      Active

      全流程 智能招投标 Agent：标书生成 · 招投标解读 · 标书检查 · 标书文档ai排版 · 商机发现 一键完成。 21 项合规检查 · 多模型切换 · RAG 知识库 · OCR 抽取。 从招标公告到可交付 docx 文档，全流程 AI 自动化。

      PythonLicense: AGPL-3.0
      • agent-skills
      • agentic-workflow
      • ai-agent
      • bid-management
      • bidding

      githubmeasured growthOpen source ↗

      Install git clone https://github.com/guangshu100/BidMaster-Pro ~/.claude/skills/BidMaster-Pro

      233GitHub stars+17 (+7.9 %)
    • 16

      MCP
      Active

      Local-first MCP memory server: SQLite, FTS5 and vector search, AES-256-GCM. 55 tools, no cloud.

      RustLicense: MIT

        mcpmeasured growthOpen source ↗

        67GitHub stars+14 (+26.4 %)
      • 17

        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

        605GitHub stars+13 (+2.2 %)
      • 18

        MCP
        Active

        MCP server for local codebase indexing, semantic search, and code dependency graphs.

        ↓ 1 242 downloads/weekTypeScriptLicense: AGPL-3.0

          mcpmeasured growthOpen source ↗

          Install claude mcp add socraticode -- npx socraticode

          3 275GitHub stars+12 (+0.37 %)
        • 19

          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

          970GitHub stars+12 (+1.3 %)
        • 20

          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+11 (+1.5 %)
        • 21

          Other
          Active

          Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.

          Rust
          • ai
          • bigdata
          • cloud-native
          • database
          • elasticsearch

          githubmeasured growthOpen source ↗

          9 433GitHub stars+9 (+0.10 %)
        • 22

          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 stars+9 (+2.0 %)
          • 23

            Agent
            Active

            Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3.…

            JavaLicense: Apache-2.0
            • a2a
            • acp
            • agentic-ai
            • ai-agents
            • anthropic

            githubmeasured growthOpen source ↗

            3 804GitHub stars+8 (+0.21 %)

          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

            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 %)
          2. 2

            atlas-agent-control-plane

            Skill
            ActiveOpen source ↗

            AtlasAgent - an auditable AI agent control plane: evidence-backed memory, governed tool runtime, checkpoint DAG recovery, and a 55-chapter engineering tutorial. FastAPI / Next.js PWA / Textual TUI

            PythonLicense: MIT
            • agent
            • agent-framework
            • agent-orchestration
            • agent-skills
            • agentic-ai
            github

            Install git clone https://github.com/malevrigns/atlas-agent-control-plane ~/.claude/skills/atlas-agent-control-plane

            Resourcemeasured growth
            105GitHub stars+47 (+81.0 %)