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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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9,448 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • French Tax MCP Server

    cornelcroi
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    security
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    quality
    Enables AI assistants to calculate French individual income tax and retrieve current tax brackets using official government data. Supports household composition calculations and provides up-to-date tax information for French residents.
    Last updated -
    11
    8

  • Yes or No MCP

    a-polishchuk
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    security
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    license
    A
    quality
    A simple MCP server implementation in TypeScript that communicates over stdio, allowing users to ask questions that end with 'yes or no' to trigger the MCP tool in Cursor.
    Last updated -
    1
    0

  • Google OR-Tools server

    Jacck
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    security
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    quality
    MCP-ORTools integrates Google's OR-Tools constraint programming solver with Large Language Models through the MCP, enabling AI models to: Submit and validate constraint models Set model parameters Solve constraint satisfaction and optimization problems Retrieve and analyze solution
    Last updated -
    14
    MIT License
    • Apple

  • RAG Information Retriever

    ChandrahaasJ
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    security
    F
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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 -

  • Tax Alert Chatbot MCP Server

    Soham-bakshi
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    security
    F
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    quality
    A server that powers an interactive chatbot for querying and managing tax alerts in a SQLite database using Google Gemini models and LangGraph's REACT agent framework.
    Last updated -

  • 2025 Tax Law Amendment MCP Server

    CheolMinBae
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    security
    F
    license
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    quality
    Enables users to search and query information from the 2025 Korean tax law amendment PDF documents using natural language. Provides document indexing and retrieval capabilities through ChromaDB vector storage and LangChain integration.
    Last updated -

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  • System Information MCP Server

    dknell
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    security
    F
    license
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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

  • 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

    batteryshark
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    security
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    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

  • JR East Delay Information MCP Server

    tinjyuu
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    security
    A
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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

  • Countries MCP Server

    Pedrohmlara
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    security
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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 -

  • Reddit MCP Server

    susancodes55
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    security
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    license
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    quality
    A Model Context Protocol server that enables AI assistants to fetch Reddit content including consensus on topics, top posts, helpful links, and related subreddits.
    Last updated -
    2

  • Gemini News Summarizer MCP Server

    MistaHolmes
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    security
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    license
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    quality
    An MCP server that enables a Gemini-based chatbot to fetch and summarize current news headlines from GNews API when users ask about trending topics.
    Last updated -
    MIT License

  • Docs Fetch MCP Server

    wolfyy970
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    security
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    quality
    Enables LLMs to autonomously retrieve and explore web content by fetching pages and recursively following links to a specified depth, particularly useful for learning about topics from documentation.
    Last updated -
    1
    7
    MIT License

  • Two Truths and a Twist

    ErgodicLabs
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    security
    A
    license
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    quality
    An MCP-based trivia game server where AI creates rounds with two true statements and one false 'twist' about various topics, letting players guess which statement is false.
    Last updated -
    5
    MIT License
    • Apple
    • Linux

  • solana-mcp-server

    aldrin-labs
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    security
    A
    license
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    quality
    mcp server that allows to do actual actions related to solana first version adds knowledge about RPC methods and how to call them
    Last updated -
    23
    The Unlicense

  • Pokemon MCP Server

    JayDevelops
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    security
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    quality
    Enables users to access comprehensive Pokemon data through the PokeAPI, including Pokemon stats, types, descriptions, move details, and complete evolution chains. Allows Claude to answer Pokemon-related questions with detailed information about any Pokemon, their abilities, and evolutionary relationships.
    Last updated -
    1
    0

  • MCTS MCP Server

    angrysky56
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    security
    A
    license
    A
    quality
    A Model Context Protocol (MCP) server that enables Claude to use Monte Carlo Tree Search algorithms for deep, explorative analysis of topics, questions, or text inputs.
    Last updated -
    6
    3
    MIT License
    • Apple
    • Linux

  • Kali Tools MCP Server

    evilbotnet
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    security
    F
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    quality
    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

  • brasil-api-mcp-server

    mauricio-cantu
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    security
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    license
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    quality
    Query a variety of data from Brasil resources seamlessly. Access information on postal codes, area codes, banks, holidays, taxes, and more through a unified interface. Enhance your AI agents and applications with rich and updated data from BrasilAPI effortlessly.
    Last updated -
    6
    5

  • Norman Finance MCP Serverofficial

    norman-finance
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    security
    A
    license
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    quality
    Norman Finance is an accounting and tax filing autopilot designed for entrepreneurs in Germany. The Norman Finance MCP server enables new ways of interacting with Norman Finance's accounting, tax, and invoicing services. Simplifying financial workflows by integrating Norman Finance API capabilities
    Last updated -
    34
    7
    MIT License
    • Linux
    • Apple

  • ChainGPT MCP

    kohasummons
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    security
    A
    license
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    quality
    Enables AI agents to access crypto-related information including latest news, prices, and market trends through ChainGPT capabilities.
    Last updated -
    3
    0
    5
    MIT License
    • Apple

  • Wikipedia MCP Server

    danbunnell
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    security
    F
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    quality
    An MCP server that retrieves and provides Wikipedia content for requested topics, enabling easy access to Wikipedia information directly through the Model Control Protocol.
    Last updated -
    1
    • Linux
    • Apple

  • Pydantic AI Documentation Server

    omniwaifu
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    security
    F
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    quality
    Provides programmatic access to Pydantic-AI documentation as an MCP server, enabling retrieval of specific documents, listing of topics, and access to changelog information.
    Last updated -
    2

  • mcpPaylocity

    mz462
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    security
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    quality
    An MCP server that provides access to Paylocity API endpoints, allowing retrieval of employee data, earnings, company codes, local taxes, and pay statements.
    Last updated -
    • Apple

  • Flight Ticket MCP Server

    xiaonieli7
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    security
    A
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    quality
    A server that provides real-time flight information query capabilities to AI assistants, allowing them to access detailed flight statuses, airport details, and related travel information.
    Last updated -
    10
    8
    MIT License
    • Apple

  • Douban MCP Server

    moria97
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    security
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    quality
    Enables interaction with Douban content including searching and reviewing books, movies, TV shows, and browsing group discussions. Supports searching by ISBN or keywords, retrieving reviews, and managing group topics with filtering capabilities.
    Last updated -
    8
    1

  • Time MCP Server

    tinytelly
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    security
    F
    license
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    quality
    Provides current time and date information with timezone support and multiple formatting options. Enables AI assistants to answer time-related queries in different timezones with detailed temporal information.
    Last updated -
    2
    4