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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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9,450 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • Javelin Guardrails MCP Server

    abhijitjavelin
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    security
    F
    license
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    quality
    Provides AI security guardrails through Javelin's platform to detect harmful content, prompt injection attempts, and language policies. Enables comprehensive content safety analysis with trust & safety detection, prompt injection protection, and language identification.
    Last updated -

  • DevEnvInfoServer

    carterlasalle
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    security
    A
    license
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    quality
    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

  • System Information MCP Server

    dknell
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    security
    F
    license
    A
    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

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  • MCP Registry Server

    jaw9c
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    security
    F
    license
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    quality
    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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    security
    A
    license
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    quality
    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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    security
    A
    license
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    quality
    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
    F
    license
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    quality
    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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    security
    A
    license
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    quality
    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
    A
    license
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    quality
    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
    A
    license
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    quality
    Enables agents to query information about gems in a Ruby project's Gemfile, including source code and metadata.
    Last updated -
    18
    MIT License

  • Cortex MCPofficial

    cortexapps
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    security
    A
    license
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    quality
    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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    security
    A
    license
    A
    quality
    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 Hub Tools

    hekmon8
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    security
    A
    license
    A
    quality
    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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    security
    F
    license
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    quality
    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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    security
    A
    license
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    quality
    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
    A
    security
    A
    license
    A
    quality
    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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    security
    F
    license
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    quality
    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
    A
    security
    A
    license
    A
    quality
    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
    A
    security
    A
    license
    A
    quality
    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
    A
    license
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    quality
    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
    A
    license
    A
    quality
    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

  • ORAS MCP Server

    shizhMSFT
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    security
    A
    license
    A
    quality
    Enables users to interact with container registries through the ORAS CLI, providing information about container images, platforms, and signatures via natural language queries.
    Last updated -
    7
    Apache 2.0

  • ProteinAtlas MCP Server

    Augmented-Nature
    A
    security
    A
    license
    A
    quality
    A comprehensive Model Context Protocol (MCP) server for accessing Human Protein Atlas data, providing information about protein expression, subcellular localization, pathology, and more.
    Last updated -
    16
    1
    MIT License

  • balldontlie-mcp

    mikechao
    A
    security
    A
    license
    A
    quality
    An MCP Server implementation that integrates the Balldontlie API, to provide information about players, teams and games for the NBA, NFL and MLB.
    Last updated -
    4
    31
    13
    MIT License

  • DNDzgz MCP Server

    danilat
    A
    security
    F
    license
    A
    quality
    An MCP server that provides real-time information about the Zaragoza tram system, including arrival estimations and station details through the DNDzgz API.
    Last updated -
    8
    0
    9

  • Daft.ie MCP Server

    amineremache
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    security
    A
    license
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    quality
    An MCP server that enables interaction with the Daft.ie API for searching rental properties and retrieving detailed information about specific rental listings.
    Last updated -
    10
    ISC License

  • Countries MCP Server

    Pedrohmlara
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    security
    F
    license
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    quality
    An MCP server that provides country-related data from the REST Countries API, allowing users to query information about countries through natural language.
    Last updated -