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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109 entries in this view.

Tool ranking

Ranked by creation date, newest first; undated entries come last. 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

    Agent
    Active

    The agent framework where the model never holds the trigger — every consequential action clears your policy first, waits for a human when it matters, and lands on a record you can verify. Build on it, or put it around the agent you already…

    PythonLicense: Apache-2.0
    • a2a
    • agent-framework
    • ai-agents
    • ai-governance
    • ai-safety

    githubmeasured growthOpen source ↗

    1GitHub starsstable
  2. 2

    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 starsstable
    • 3

      Other
      Active

      Local-first Agentic AI Infrastructure Platform with LLM Gateway, Agent DAG Runtime, MCP Tool Hub, A2A Agent Mesh, Local RAG, Tool Sandbox and Observability.

      Python
      • a2a
      • agent-runtime
      • ai-infra
      • deepseek
      • fastapi

      githubmeasured growthOpen source ↗

      1GitHub starsstable
    • 4

      Skill
      Active

      Scaffolding skill + always-on conventions (CLAUDE.md/AGENTS.md) for Quarkus + LangChain4j agentic AI apps: AI services, multi-agent workflows, and RAG. Installable in Claude Code, Codex, Copilot, Cursor, and any Agent Skills-compatible…

      ShellLicense: Apache-2.0
      • agent-skills
      • ai
      • ai-agents
      • claude-code
      • claude-code-plugin

      githubmeasured growthOpen source ↗

      Install /plugin marketplace add eldermoraes/quarkus-agentic-scaffolding

      26GitHub starsstable
    • 5

      MCP
      Active

      MCP server for Zotero: search, citations, safe writes, semantic search, and PDF passages.

      ↓ 1 201 downloads/weekTypeScriptLicense: MIT

        mcpmeasured growthOpen source ↗

        Install claude mcp add zoteus -- npx @oscardvs/zoteus

        29GitHub starsstable
      • 6

        MCP
        Active

        Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.

        TypeScriptLicense: Apache-2.0

          mcpmeasured growthOpen source ↗

          Install claude mcp add cyanheads-mcp-server -- npx @cyanheads/cyanheads-mcp-server

          1GitHub starsstable
        • 7

          Skill
          Active

          Personal knowledge vault plugin for Claude Code — session recording, memory distillation, and hybrid semantic + BM25 retrieval.

          PythonLicense: Apache-2.0
          • agent-memory
          • bm25
          • chromadb
          • claude-code
          • claude-code-plugin

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add XBlueSky/cortexes

          20GitHub starsstable
        • 8

          Skill
          Active

          Your AI confers, with anyone's — an open A2A protocol platform where AI Agents talk to each other on behalf of their owners. Self-hosted, DID:web identity, RFC 9421 signatures, Claude Code plugin.

          TypeScriptLicense: Apache-2.0
          • a2a
          • a2a-protocol
          • agent-communication
          • agent-to-agent
          • ai-agents

          githubmeasured growthOpen source ↗

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

          3GitHub starsstable
        • 9

          Skill
          Active

          Local NotebookLM for Claude Code via Google Antigravity (agy / Gemini 3.x): /agy:notebook turns a folder of documents into per-doc summaries + a relevance index + a cited synthesis + Q&A. Plus audio/video transcription, deep web research…

          PythonLicense: MIT
          • agy
          • agy-cli
          • anthropic
          • antigravity
          • antigravity-cli

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add MarcosNahuel/antigravity-plugin-cc

          26GitHub starsstable
        • 10

          MCP
          Active

          Persistent per-project memory for Claude Code, Kiro, Cursor & Codex - plain markdown committed with your code, captured prompt-free, auto-injected at session start, recalled by meaning (local semantic search, zero API). Cross-project…

          JavaScriptLicense: MIT
          • agent-memory
          • ai-agents
          • ai-memory
          • anthropic
          • claude

          githubmeasured growthOpen source ↗

          7GitHub starsstable
        • 11

          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 %)
        • 12

          Skill
          Active

          Claude Code plugin: four-layer long-term memory (L0→L1→L2→L3 Persona) with local FTS5 + EmbeddingGemma vector hybrid recall, zero external API

          JavaScript
          • agent
          • ai-agent
          • claude-code-plugin
          • embedding
          • llm

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add baodq97/tencentdb-agent-memory

          10GitHub starsstable
        • 13

          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

          251GitHub stars+30 (+13.6 %)
        • 14

          Agent
          Active

          SHM v6.15.0 — 自演化超图记忆系统: R4OracleDb oracle DB 同形注入, 评测数据面重建 (LoCoMo-Refined 72.43%), 精卫循环至 SOTA 82.65 进行中

          PythonLicense: MIT
          • a2a
          • ai-agent
          • hypergraph
          • knowledge-graph
          • mcp

          githubmeasured growthOpen source ↗

          6GitHub starsstable
        • 15

          Agent
          Active

          专利侵权分析系统 —— 输入专利公开号，产出竞品侵权分析报告；同时打包成 skill，可被任意 agent（dsh, codex, claudecode 等） 调用。

          Python
          • agentic-ai
          • claim-chart
          • claude-code
          • claude-code-skill
          • codex

          githubmeasured growthOpen source ↗

          59GitHub stars+2 (+3.5 %)
        • 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 659GitHub stars+154 (+2.4 %)
        • 17

          MCP
          Active

          Local-first second brain with semantic search. Markdown notes indexed by a local ML model.

          ↓ 49 downloads/weekTypeScriptLicense: MIT

            mcpmeasured growthOpen source ↗

            Install claude mcp add memex -- npx @evan-moon/memex

            3GitHub starsstable
          • 18

            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

            28 556GitHub stars+1 487 (+5.5 %)
          • 19

            MCP
            Active

            High-performance knowledge graph MCP server for AI coding agents with semantic search.

            ↓ 50 downloads/weekRustLicense: MIT

              mcpmeasured growthOpen source ↗

              Install claude mcp add lain -- npx @spuentesp/lain-mcp

              6GitHub starsstable
            • 20

              Agent
              Active

              Auditable multi-agent debate platform that uses AI agents to analyze, critique, and optimize arguments through structured deliberation.

              Svelte
              • a2a
              • api
              • debate-platform
              • dms
              • multi-agent-systems

              githubmeasured growthOpen source ↗

              0GitHub starsstable
            • 21

              MCP
              Active

              Obsidian MCP server: semantic search, knowledge graph, and vault editing. No plugin required.

              ↓ 61 downloads/weekTypeScriptLicense: Apache-2.0

                mcpmeasured growthOpen source ↗

                Install claude mcp add obsidian-brain -- npx obsidian-brain

                10GitHub starsstable
              • 22

                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 805GitHub stars+2 468 (+2.2 %)

              Learning resources

              Ranked by creation date, newest first; undated entries come last. These resources remain available separately and do not take part in the main tool ranking.

              1. 1

                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 %)
              2. 2

                Agentic-AI-Project-Find-Deal-Opportunities

                Other
                ActiveOpen source ↗

                Detect underpriced products by scraping deals and using AI models to estimate fair prices for profit opportunity identification.

                Jupyter Notebook
                • a
                • a2a
                • activemq
                • amqp
                • awesome
                githubResourcemeasured growth
                1GitHub starsstable
              3. 3

                membrane

                Skill
                ActiveOpen source ↗

                A selective learning and memory substrate for agentic systems — typed, revisable, decayable memory with competence learning and trust-aware retrieval.

                GoLicense: MIT
                • agent
                • agent-framework
                • agent-memory
                • agent-skills
                • agentic
                github

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

                Resourcemeasured growth
                94GitHub starsstable