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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119 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

    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 %)
  2. 2

    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 495GitHub stars+57 (+0.14 %)
  3. 3

    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 333GitHub stars+39 (+0.14 %)
  4. 4

    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+8 (+0.08 %)
  5. 5

    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 %)
  6. 6

    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 stars+2 (+0.05 %)
  7. 7

    Agent
    Active

    BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level…

    PythonLicense: Apache-2.0
    • agent
    • ai
    • chatbot
    • enterprise
    • finetune

    githubmeasured growthOpen source ↗

    11 923GitHub stars+3 (+0.03 %)
  8. 8

    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 488GitHub stars+10 (+0.02 %)
  9. 9

    MCP
    Active

    Semantic search across Sui documentation and knowledge sources, powered by kapa.ai

    RustLicense: Apache-2.0

      mcpmeasured growthOpen source ↗

      Remote server, to be declared in the MCP configuration https://sui.mcp.kapa.ai

      7 740GitHub starsstable
    • 10

      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 starsstable
      • 11

        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 starsstable
        • 12

          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
          • 13

            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
            • 14

              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
              • 15

                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

                  276GitHub starsstable
                • 16

                  MCP
                  Active

                  A semantic search engine for files and code.

                  PythonLicense: MIT

                    mcpmeasured growthOpen source ↗

                    Install claude mcp add vexor -- uvx vexor

                    239GitHub starsstable
                  • 17

                    Skill
                    Active

                    Local-first, auditable Python code agent. Ships its own 30-task hidden-test benchmark plus SWE-bench Verified scored by the official harness -- every number reproducible, negative results included.

                    PythonLicense: MIT
                    • agent
                    • agent-evaluation
                    • agent-skills
                    • code-agent
                    • llm

                    githubmeasured growthOpen source ↗

                    Install git clone https://github.com/hwfengcs/DM-Code-Agent ~/.claude/skills/DM-Code-Agent

                    151GitHub starsstable
                  • 18

                    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
                  • 19

                    MCP
                    Active

                    Pay-per-use IBM Granite AI via x402: chat, code, embeddings, forecasting. USDC on Base or Solana.

                    JavaScriptLicense: Apache-2.0

                      mcpmeasured growthOpen source ↗

                      Remote server, to be declared in the MCP configuration https://three.ws/api/ibm-mcp

                      105GitHub starsstable
                    • 20

                      MCP
                      Active

                      Self improving agents through iterations

                      PythonLicense: Apache-2.0
                      • agent-learning
                      • agent-memory
                      • agentic-workflows
                      • ai-agents
                      • claude-code

                      githubmeasured growthOpen source ↗

                      104GitHub starsstable
                    • 21

                      MCP
                      Active

                      Alibaba Cloud DashScope MCP: Qwen chat, embeddings, and model discovery on your own account.

                      ↓ 84 downloads/weekJavaScriptLicense: Apache-2.0

                        mcpmeasured growthOpen source ↗

                        Install claude mcp add alibaba-cloud -- npx @three-ws/alibaba-cloud-mcp

                        105GitHub starsstable
                      • 22

                        MCP
                        Active

                        IBM watsonx.ai MCP by three.ws: chat, text generation, embeddings, and tokenization.

                        ↓ 73 downloads/weekJavaScriptLicense: Apache-2.0

                          mcpmeasured growthOpen source ↗

                          Install claude mcp add ibm-watsonx -- npx @three-ws/ibm-watsonx-mcp

                          105GitHub starsstable
                        • 23

                          MCP
                          Active

                          x402 pay-per-use IBM Granite AI: chat, code, embeddings, analysis, forecasting. Pay USDC per call.

                          ↓ 70 downloads/weekJavaScriptLicense: Apache-2.0

                            mcpmeasured growthOpen source ↗

                            Install claude mcp add ibm-x402-mcp -- npx @three-ws/ibm-x402-mcp

                            105GitHub starsstable
                          • 24

                            Agent
                            Active

                            🚀 Way Back Home

                            PythonLicense: Apache-2.0
                            • a2a
                            • adk
                            • agents
                            • bigquery
                            • google-cloud

                            githubmeasured growthOpen source ↗

                            96GitHub 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

                            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+33 (+0.09 %)