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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:

  • AWS Resources MCP Server

    baryhuang
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    A Model Context Protocol server that enables Claude to execute Python code using boto3 to query and manage AWS resources directly from conversations.
    Last updated -
    1
    20
    MIT License
    • Linux

  • language-server-mcp

    alexwohletz
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    TypeScript-based MCP server designed to enhance code editing experiences by providing features such as hover information, code completion, and diagnostics.
    Last updated -
    3
    25
    MIT License
    • Apple

  • MCP Language Server

    isaacphi
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    Runs a language server and provides tools for communicating with it. Language servers excel at tasks that LLMs often struggle with, such as precisely understanding types, understanding relationships, and providing accurate symbol references.
    Last updated -
    1,096
    BSD 3-Clause
    • Apple
    • Linux

  • Java Class Analyzer MCP Server

    handsomestWei
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    Enables AI tools to analyze Java dependencies by scanning Maven projects, decompiling JAR files, and extracting detailed class information including methods, fields, and inheritance relationships. Solves the problem of AI hallucinations when generating code that calls external dependencies by providing accurate class structures through decompilation.
    Last updated -
    3
    114
    1
    Apache 2.0

  • Azure Java SDK MCP Server

    weidongxu-microsoft
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    A Model Context Protocol server that provides Azure Java SDK documentation to AI assistants, allowing them to access readme files with introductions, key concepts, and code samples.
    Last updated -
    1
    1
    MIT License

  • Google OR-Tools server

    Jacck
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    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

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  • Yes or No MCP

    a-polishchuk
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    security
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    license
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    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

  • RAG Information Retriever

    ChandrahaasJ
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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 -

  • MCP Visual Language

    lengbone
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    Enables intelligent image analysis using GLM-4.5V model, specializing in extracting and analyzing code from screenshots with support for file paths and clipboard input.
    Last updated -
    1
    3

  • System Information MCP Server

    dknell
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    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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    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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    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

  • Natural Language MySQL Query System

    floatDreamWithSong
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    security
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    quality
    A Model Context Protocol (MCP) server that converts natural language queries into SQL statements, allowing users to query MySQL databases using conversational language instead of writing SQL code.
    Last updated -
    3

  • 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

  • Rules MCP Server

    markacianfrani
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    An MCP server that allows coding agents to look up contextual rules and patterns on demand, providing just-in-time guidance for specific tasks like writing tests or authoring UI.
    Last updated -
    2
    8

  • ClinicalTrials.gov Natural Language API Server

    HuaiyuZhang
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    Enables users to query ClinicalTrials.gov using natural language instead of complex API parameters, translating plain English requests into structured API calls and returning organized clinical trial data.
    Last updated -
    MIT License

  • InfluxDB Natural Language Query MCP Server

    dohoon84
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    security
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    Enables users to generate and execute InfluxDB queries using natural language commands in Korean. Supports querying metrics like CPU usage, memory status, and system monitoring data through conversational interface.
    Last updated -

  • MCP Image Server

    IA-Programming
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    A Model Context Protocol server that enables fetching and processing images from URLs, local file paths, and numpy arrays, returning them as base64-encoded strings with proper MIME types.
    Last updated -
    1
    12
    MIT License
    • Linux
    • Apple

  • YouTube MCP Server

    IA-Programming
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    security
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    A Model Context Protocol server that enables searching YouTube videos, retrieving and storing transcripts, and performing semantic search over video content without using the official YouTube API.
    Last updated -
    6
    MIT License

  • DocsFetcher MCP Server

    cdugo
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    Fetches and extracts comprehensive package documentation from multiple programming language ecosystems (JavaScript, Python, Java, etc.) for LLMs like Claude without requiring API keys.
    Last updated -
    4
    27
    14
    MIT License
    • Apple
    • Linux

  • MCP-Hyperskillofficial

    hyperskill
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    security
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    A FastMCP integration with Hyperskill that allows AI agents to explain programming topics and search for programming resources using Hyperskill's learning materials.
    Last updated -
    1

  • MCP Server Demo

    ranjaka
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    A Model Context Protocol server that provides tools and resources for Java CI/CD workflows and GitLab CI template management.
    Last updated -
    1

  • Hong Kong Open Data MCP Serverofficial

    mcp-open-data-hk
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    Enables access to Hong Kong government's official open data portal (DATA.GOV.HK) through natural language queries. Supports searching datasets, browsing categories, and retrieving detailed information about Hong Kong's public data resources.
    Last updated -
    1
    MIT License

  • OpenTofu MCP Serverofficial

    opentofu
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    A Model Context Protocol server that allows AI assistants to search for and retrieve information about OpenTofu providers, modules, resources, and data sources from the OpenTofu Registry.
    Last updated -
    5
    49
    58

  • mcp-nixos

    utensils
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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

  • Code Research MCP Server

    nahmanmate
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    Facilitates searching and accessing programming resources across platforms like Stack Overflow, MDN, GitHub, npm, and PyPI, aiding LLMs in finding code examples and documentation.
    Last updated -
    6
    39
    AGPL 3.0
    • Apple

  • 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