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Open-Source MCP servers

Production-ready MCP servers that extend AI capabilities through file access, database connections, API integrations, and other contextual services.

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9,443 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • MCP Frontend Testing Server

    StudentOfJS
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    Provides tools for frontend testing including code analysis, test generation, test execution, and React component testing for Jest and Cypress frameworks.
    Last updated -
    4
    21
    MIT License

  • MCP Testing Assistant

    mcpassistant
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    Enables automated testing and coverage reporting for MCP services with test execution, file generation, and mock service creation. Provides comprehensive testing infrastructure including Jest integration, coverage reports, and health checks for the MCP ecosystem.
    Last updated -

  • DevEnvInfoServer

    carterlasalle
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    An MCP server that provides detailed information about your development environment to the Cursor code editor, enabling more context-aware assistance.
    Last updated -
    5
    MIT License
    • Linux
    • Apple

  • Kali Tools MCP Server

    evilbotnet
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    Provides comprehensive access to documentation for 600+ Kali Linux penetration testing and security tools through Claude Desktop, enabling users to search, explore, and get detailed information about security tools by category or functionality.
    Last updated -
    • Apple

  • Tox Testing MCP Server

    that1guy15
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    An MCP server that executes tox commands to run Python tests within a project using pytest, allowing users to run all tests or specific test groups, files, cases, or directories.
    Last updated -
    5

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  • System Information MCP Server

    dknell
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    quality
    Provides real-time system metrics and information through a Model Context Protocol interface, enabling access to CPU usage, memory statistics, disk information, network status, and running processes.
    Last updated -
    7
    2
    • Apple
    • Linux

  • Echo MCP Server

    piebro
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    A simple server implementing the Model Context Protocol (MCP) that echoes messages back, designed for testing MCP clients.
    Last updated -
    1
    2
    MIT License

  • MCP Registry Server

    jaw9c
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    Enables searching and retrieving detailed information about MCP servers from the official MCP registry. Provides tools to list servers with filtering options and get comprehensive details about specific servers.
    Last updated -
    2

  • Zendesign MCP Server

    vishnumallela
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    An MCP server that allows Cursor users to fetch real-time information about Zendesign design system components.
    Last updated -
    MIT License
    • Apple
    • Linux

  • steam

    dsp
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    Provide information about the games you played and how long you played them for to an LLM
    Last updated -
    3
    MIT License

  • RAG Information Retriever

    ChandrahaasJ
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    security
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    An MCP server that implements Retrieval-Augmented Generation to efficiently retrieve and process important information from various sources, providing accurate and contextually relevant responses.
    Last updated -

  • JR East Delay Information MCP Server

    tinjyuu
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    An MCP server that provides real-time delay information for JR East train lines, accessible via MCP clients like Claude Desktop through the 'getDelays' tool.
    Last updated -
    4
    MIT License

  • Knowledge Graph Memory Server

    AgentWong
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    security
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    A persistent memory implementation using a local knowledge graph that lets Claude remember information about users across conversations.
    Last updated -
    6
    MIT License

  • BundlerMCP

    subelsky
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    security
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    Enables agents to query information about gems in a Ruby project's Gemfile, including source code and metadata.
    Last updated -
    18
    MIT License

  • Star MCP

    jlankellii
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    A comprehensive Model Context Protocol service providing zodiac information queries, horoscope analysis, and compatibility testing between star signs.
    Last updated -
    5
    6
    2

  • Cortex MCPofficial

    cortexapps
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    A Model Context Protocol server that provides natural language access to Cortex API, enabling users to query information about their system's structure and make faster decisions about services, incidents, and team responsibilities.
    Last updated -
    2
    MIT License

  • FirstCycling MCP Server

    r-huijts
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    Provides professional cycling data from FirstCycling, allowing users to retrieve comprehensive information about cyclists, race results, historical cycling data, and team information through natural language queries.
    Last updated -
    18
    14
    MIT License
    • Apple

  • MCP Unit Test Sensei

    kourtni
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    security
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    quality
    An MCP server that enforces unit testing standards by linting code and guiding agentic coding tools (like Gemini CLI or Claude Code) to follow best practices in test-driven development.
    Last updated -
    13
    • Linux
    • Apple

  • MCP Hub Tools

    hekmon8
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    An MCP server that allows searching for and retrieving information about Model Context Protocol servers registered on the MCP Hub.
    Last updated -
    1
    1
    MIT License
    • Apple
    • Linux

  • MCP Memory

    XileForce
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    A MCP Server that gives AI assistants the ability to remember information about users across conversations using vector search technology.
    Last updated -

  • System Information MCP Server

    batteryshark
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    Provides comprehensive system diagnostics and hardware analysis through 10 specialized tools for troubleshooting and environment monitoring. Offers targeted information gathering for CPU, memory, network, storage, processes, and security analysis across Windows, macOS, and Linux platforms.
    Last updated -
    10
    MIT License
    • Apple
    • Linux

  • Knowledge Graph Memory Server

    modelcontextprotocol
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    A basic implementation of persistent memory using a local knowledge graph. This lets Claude remember information about the user across chats.
    Last updated -
    9
    71,166
    68,255
    MIT License
    • Apple
    • Linux

  • Overwatch2 MCP Server

    morimorig3
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    An MCP server that provides Overwatch 2 hero data, allowing users to retrieve hero lists and detailed information about specific heroes.
    Last updated -
    1

  • Semantic Scholar MCP Server

    SnippetSquid
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    Enables access to the Semantic Scholar Academic Graph API for searching and retrieving detailed information about academic papers, authors, citations, and references.
    Last updated -
    11
    2
    MIT License

  • Shodan MCP Server

    Cyreslab-AI
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    Provides access to Shodan API functionality, enabling AI assistants to query information about internet-connected devices for cybersecurity research and threat intelligence.
    Last updated -
    23
    29
    MIT License
    • Linux
    • Apple

  • Freesound MCP Server

    timjrobinson
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    security
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    An MCP server that enables AI assistants to search, analyze, and retrieve information about audio samples from Freesound.org through their API.
    Last updated -
    MIT License
    • Apple

  • mcp-nixos

    utensils
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    security
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    license
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    MCP-NixOS is a Model Context Protocol server that provides real-time, accurate information about NixOS packages, options, Home Manager, and nix-darwin configurations, preventing AI assistants from hallucinating about NixOS resources and enabling them to deliver factual system configuration guidance.
    Last updated -
    18
    282
    MIT License
    • Linux
    • Apple