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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:

  • 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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    security
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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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    security
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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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    security
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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

  • 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

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  • 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 -

  • MCP Visual Language

    lengbone
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    security
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    quality
    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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    security
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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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    security
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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

  • Natural Language MySQL Query System

    floatDreamWithSong
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    security
    F
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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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    security
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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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    quality
    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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    security
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    quality
    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

  • Countries MCP Server

    Pedrohmlara
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    security
    F
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    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 -

  • MCP-Hyperskillofficial

    hyperskill
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    security
    F
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    quality
    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

  • Reddit MCP Server

    susancodes55
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    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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    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

  • HackathonWatch MCP Server

    ag2-mcp-servers
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    security
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    An MCP server for interacting with the HackathonWatch API, allowing users to access hackathon data and related information through natural language commands.
    Last updated -
    • Linux
    • Apple

  • Docs Fetch MCP Server

    wolfyy970
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    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
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    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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    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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    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