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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146 entries in this view.

Tool ranking

Mixed ranking: measured growth takes priority; entries without two snapshots are estimated. 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

    MCP
    Dormant

    ZKshare stdio MCP: store/prove/share, semantic search, sandbox proxy to HTTPS /api/v1/context.

    ↓ 22 downloads/weekTypeScriptLicense: MIT

      mcpmeasured growthOpen source ↗

      Install claude mcp add zkshare -- npx zkshare-mcp

      0GitHub starsstable
    • 2

      MCP
      UnknownLast commit: unavailable

      Local-first bookmark management with semantic search and AI-powered organization

      mcpmeasured growthOpen source ↗

      Install claude mcp add bookmark-lens -- uvx bookmark-lens

      21downloads over 7 daysstable
    • 3

      MCP
      UnknownLast commit: unavailable

      Temporal memory MCP server with LanceDB vector search, weight-decay scoring, and LLM consolidation

      mcpestimated momentumOpen source ↗

      Install claude mcp add mem-context -- uvx mem-context

      21downloads over 7 days—
    • 4

      MCP
      UnknownLast commit: unavailable

      Team engineering memory for AI coding assistants. 47 MCP tools, pgvector semantic search.

      mcpestimated momentumOpen source ↗

      Install claude mcp add memforge-memory -- npx @memforgeai/memory-service

      17downloads over 7 days—
    • 5

      MCP
      Active

      Minimal RAG-over-a-corpus MCP retrieval: search_knowledge returns cited chunks. Local embeddings.

      ↓ 17 downloads/weekPythonLicense: MIT

        mcpmeasured growthOpen source ↗

        Install claude mcp add rag-mcp -- uvx jaimenbell-rag-mcp

        0GitHub starsstable
      • 6

        MCP
        Dormant

        Knowledge API for AI agents — content, agent directory, model benchmarks, semantic search.

        ↓ 16 downloads/weekJavaScriptLicense: NOASSERTION

          mcpmeasured growthOpen source ↗

          Install claude mcp add voidfeed-mcp -- npx voidfeed-mcp

          0GitHub starsstable
        • 7

          MCP
          UnknownLast commit: unavailable

          Persistent memory for AI agents with rollback, audit trails, and semantic search.

          mcpmeasured growthOpen source ↗

          Install claude mcp add novyx-mcp -- uvx novyx-mcp

          15downloads over 7 daysstable
        • 8

          MCP
          Dormant

          Local FAISS vector database for RAG with document ingestion, semantic search, and MCP prompts.

          ↓ 13 downloads/weekPythonLicense: MIT

            mcpmeasured growthOpen source ↗

            Install claude mcp add local-faiss-mcp -- uvx local-faiss-mcp

            33GitHub starsstable
          • 9

            MCP
            Abandoned

            MCP server for YandexGPT — completions, embeddings, classification, summarization (Russia)

            ↓ 36 downloads/weekTypeScriptLicense: MIT

              mcpmeasured growthOpen source ↗

              Install claude mcp add yandexgpt-mcp -- npx @theyahia/yandexgpt-mcp

              0GitHub starsstable
            • 10

              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 675GitHub stars+396 (+0.62 %)
            • 11

              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 815GitHub stars+271 (+0.25 %)
            • 12

              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 %)
            • 13

              Other
              Active

              Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI…

              TypeScriptLicense: MIT
              • ci
              • ci-cd
              • cicd
              • evaluation
              • evaluation-framework

              githubmeasured growthOpen source ↗

              24 797GitHub stars+146 (+0.59 %)
            • 14

              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 491GitHub stars+53 (+0.13 %)
            • 15

              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 387GitHub stars+601 (+0.39 %)
            • 16

              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 377GitHub stars+127 (+0.37 %)
            • 17

              Agent
              Active

              TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.

              GoLicense: Apache-2.0
              • agent
              • agent-context
              • agent-memory
              • agentic
              • ai

              githubmeasured growthOpen source ↗

              40 487GitHub stars+9 (+0.02 %)
            • 18

              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 434GitHub stars+10 (+0.11 %)
            • 19

              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 962GitHub stars+106 (+0.23 %)
            • 20

              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 408GitHub stars+56 (+0.21 %)
            • 21

              Other
              Active

              High-performance data engine for AI and multimodal workloads. Process images, audio, video, and structured data at any scale

              RustLicense: Apache-2.0
              • ai-engineering
              • ai-pipeline
              • arrow
              • artificial-intelligence
              • big-data

              githubmeasured growthOpen source ↗

              5 741GitHub stars+10 (+0.17 %)
            • 22

              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 459GitHub stars+29 (+0.25 %)
            • 23

              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 884GitHub stars+735 (+6.6 %)
            • 24

              Library
              Active

              LakeSoul is an end-to-end, realtime cloud-native Lakehouse framework for fast data ingestion, concurrent updates, incremental analytics, multimodal data processing and vector search — powering next-generation BI and AI workloads.

              JavaLicense: Apache-2.0
              • arrow
              • daft
              • datafusion
              • flink
              • gluten

              githubmeasured growthOpen source ↗

              3 249GitHub stars+2 (+0.06 %)

            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 960GitHub stars+648 (+0.48 %)