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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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

    Agent
    Active

    An event-driven framework designed to build and orchestrate multi-agent AI systems. It enables seamless integration of AI agents with real-world data sources and systems, facilitating complex, multi-step workflows.

    PythonLicense: Apache-2.0
    • a2a
    • agentframework
    • agentic
    • agentic-ai
    • agentic-framework

    githubmeasured growthOpen source ↗

    4 952GitHub stars+1 (+0.02 %)
  2. 2

    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 593GitHub stars+1 (+0.06 %)
  3. 3

    MCP
    Dormant

    Persistent cross-project memory for Cursor and Claude Code using local semantic search.

    PythonLicense: MIT

      mcpmeasured growthOpen source ↗

      Install claude mcp add longmem -- uvx longmem

      1GitHub stars+1
    • 4

      Other
      Active

      Open-source enterprise AI agent platform for centrally governing agents, tools, memory, RAG, approvals, and durable workflows with FastAPI, LangGraph, LangChain, and LangSmith.

      Python
      • a2a-protocol
      • agent-orchestration
      • agent-platform
      • agentic-ai
      • ai-agents

      githubmeasured growthOpen source ↗

      2GitHub stars+1 (+100.0 %)
    • 5

      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 ↗

      639GitHub stars+1 (+0.16 %)
    • 6

      Skill
      Dormant

      Give Claude Code photographic memory in ONE portable file. No database, no SQLite, no ChromaDB - just a single .mv2 file you can git commit, scp, or share. Native Rust core with sub-ms operations.

      TypeScriptLicense: MIT
      • ai-tools
      • anthropic
      • claude
      • claude-agents
      • claude-ai

      githubmeasured growthOpen source ↗

      Install git clone https://github.com/memvid/claude-brain ~/.claude/skills/claude-brain

      575GitHub stars+1 (+0.17 %)
    • 7

      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

      381GitHub stars+1 (+0.26 %)
    • 8

      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 ↗

      373GitHub stars+1 (+0.27 %)
    • 9

      Agent
      Active

      Utilities to spin up Pydantic AI agents with a few additional enhancements and integrations

      PythonLicense: MIT
      • a2a
      • agents
      • embeddings
      • mcp
      • pydantic-ai

      githubmeasured growthOpen source ↗

      5GitHub stars+1 (+25.0 %)
    • 10

      MCP
      Active

      Cognitive memory for AI agents — semantic search, Hebbian learning, knowledge graphs.

      ↓ 85 downloads/weekRustLicense: Apache-2.0

        mcpmeasured growthOpen source ↗

        Install claude mcp add shodh-memory -- npx @shodh/memory-mcp

        277GitHub stars+1 (+0.36 %)
      • 11

        MCP
        Active

        Persistent local AI memory. SQLite + FTS5 + vector search, knowledge graph. No cloud, no API keys.

        ↓ 59 downloads/weekTypeScriptLicense: MIT

          mcpmeasured growthOpen source ↗

          Install claude mcp add local-memory-mcp -- npx @studiomeyer/local-memory-mcp

          12GitHub stars+1 (+9.1 %)
        • 12

          MCP
          Active

          Persistent memory for AI assistants with semantic search and knowledge graph relationships.

          ↓ 871 downloads/weekRustLicense: Apache-2.0

            mcpmeasured growthOpen source ↗

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

            12GitHub stars+1 (+9.1 %)
          • 13

            MCP
            Active

            Graph context, semantic search, guarded edits, and reviewable Git for local Obsidian vaults.

            ↓ 123 downloads/weekTypeScriptLicense: MIT

              mcpmeasured growthOpen source ↗

              Install claude mcp add obsidian-everywhere -- npx obsidian-everywhere

              14GitHub stars+1 (+7.7 %)
            • 14

              Agent
              Dormant

              Practical GenAI-Eshop application using Semantic Kernel, multi-agent orchestrations, Mcp tools, A2A Agents, Semantic Search, Aspire and more.

              C#License: MIT
              • a2a
              • agents
              • ai-agents
              • aspire
              • csharp

              githubmeasured growthOpen source ↗

              15GitHub stars+1 (+7.1 %)
            • 15

              Skill
              Active

              Graph RAG on SQLite for AI agents: vector retrieval + hand-curated wikilink graph + cross-encoder rerank, with a zero-token per-turn memory ledger. Working pilot.

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

              githubmeasured growthOpen source ↗

              Install git clone https://github.com/tonydzi/sqlite-graph-memory ~/.claude/skills/sqlite-graph-memory

              8GitHub stars+1 (+14.3 %)
            • 16

              Other
              Active

              CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

              JavaLicense: Apache-2.0
              • analytics
              • big-data
              • cratedb
              • database
              • dbms

              githubmeasured growthOpen source ↗

              4 432GitHub starsstable
            • 17

              Agent
              Dormant

              Everything you need to build, deploy, and collaborate with agents. Ride the llama, avoid the drama.

              TypeScript
              • a2a
              • agent-builder
              • agent-building
              • agent-framework
              • agentic-ai

              githubmeasured growthOpen source ↗

              20GitHub starsstable
            • 18

              Skill
              Active

              Find out what your coding agents already know. Docmancer indexes the memory, rules, and instructions Claude Code, Codex, Cursor, and Gemini wrote on your machine, then carries the durable parts to every agent. It is local-first and under…

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

              githubmeasured growthOpen source ↗

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

              123GitHub starsstable
            • 19

              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
            • 20

              MCP
              Active

              Semantic search across 6,236 Quran verses and 12,416 authentic Hadiths for Islamic guidance.

              TypeScriptLicense: NOASSERTION

                mcpmeasured growthOpen source ↗

                Remote server, to be declared in the MCP configuration https://criterion.life/api/mcp

                20GitHub starsstable
              • 21

                Skill
                Active

                Local-first AI knowledge app and Agent Skill with evidence-backed Wiki, an interactive knowledge universe, Viki Q&A, and shareable knowledge galaxies.

                JavaScriptLicense: MIT
                • agent-skills
                • ai-agents
                • ai-assistant
                • claude-code
                • codex

                githubmeasured growthOpen source ↗

                Install git clone https://github.com/NimaChu/my-wiki ~/.claude/skills/my-wiki

                123GitHub starsstable
              • 22

                MCP
                Active

                Persistent memory for AI coding agents. Local-first SQLite + vector search. 17 MCP tools.

                ↓ 92 downloads/weekGoLicense: NOASSERTION

                  mcpmeasured growthOpen source ↗

                  Install claude mcp add same -- npx @sgx-labs/same

                  23GitHub starsstable
                • 23

                  MCP
                  Active

                  Knowledge base for Claude Code with semantic search, feed intelligence, and teams

                  ↓ 29 downloads/weekPythonLicense: NOASSERTION

                    mcpmeasured growthOpen source ↗

                    Install claude mcp add distillery-mcp -- uvx distillery-mcp

                    24GitHub starsstable
                  • 24

                    Agent
                    Active

                    Evidence-first multi-agent debate skill: get a second opinion by pitting Codex × Claude Code (or GLM/DeepSeek/Qwen) to independently review, red-team & judge high-stakes code and architecture decisions.

                    License: MIT
                    • agent-arena
                    • agent-skill
                    • ai-agents
                    • architecture-review
                    • claude-code

                    githubmeasured growthOpen source ↗

                    25GitHub starsstable

                  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

                    dspy-skills

                    Skill
                    ActiveOpen source ↗

                    Collection of Claude Skills for DSPy framework - program language models, optimize prompts, and build RAG pipelines systematically

                    PythonLicense: MIT
                    • agent-skills
                    • claude-code
                    • claude-skills
                    • dspy
                    • llm
                    github

                    Install git clone https://github.com/OmidZamani/dspy-skills ~/.claude/skills/dspy-skills

                    Resourcemeasured growth
                    122GitHub stars+1 (+0.83 %)