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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:

  • Java Class Analyzer MCP Server

    handsomestWei
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    security
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    quality
    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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    security
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    license
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    quality
    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

  • language-server-mcp

    alexwohletz
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    quality
    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

  • 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

  • Yes or No MCP

    a-polishchuk
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    security
    F
    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

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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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    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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    security
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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
    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

  • 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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    security
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    quality
    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
    A
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    quality
    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
    A
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    quality
    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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    security
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    license
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    quality
    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

  • quarkus-mcp-servers

    quarkiverse
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    security
    A
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    quality
    browse, list and edit filesystem. Implemented in Java/Quarkus with native image (Fast!) available
    Last updated -
    167
    Apache 2.0

  • Coding Standards MCP Server

    ggerve
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    security
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    license
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    Provides tools for accessing coding style guidelines and best practices for various technologies including Java, Python, and React.
    Last updated -
    3
    12
    MIT License

  • MCP Server Demo

    ranjaka
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    security
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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

  • 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
    license
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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

  • Powertools MCP Search Server

    aws-powertools
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    security
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    quality
    Enables LLMs to search through AWS Lambda Powertools documentation across multiple runtimes (Python, TypeScript, Java, .NET) using a Model Context Protocol server.
    Last updated -
    2
    36
    33
    • Apple
    • Linux

  • Coder Toolbox MCP Server

    lamemind
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    security
    F
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    A utility toolkit that enhances Claude's code interaction capabilities by providing seamless tools for Java code analysis, manipulation, and testing workflows.
    Last updated -
    3

  • NL Analytics MCP Server for Apache Druid

    iunera
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    security
    A
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    quality
    Natural Language Analytics MCP server for Apache Druid. With this enterprise ready server in Java, one can query Apache Druid by natural language queries. Furthermore, the complete management like data loading of the Time Series Database Druid can be done with natural language commands.
    Last updated -
    6
    Apache 2.0

  • JVM MCP Server

    xzq-xu
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    security
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    quality
    A JVM monitoring and control platform server based on Arthas that provides a Python interface for monitoring and analyzing Java processes with capabilities for thread analysis, memory monitoring, and performance diagnostics.
    Last updated -
    15
    69
    MIT License
    • Linux
    • Apple

  • Jadx MCP Server

    mobilehackinglab
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    security
    F
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    quality
    A server that exposes the Jadx decompiler API over HTTP, enabling Claude to interact with decompiled Java/Android code to list classes, fetch source code, inspect methods/fields, and extract code live.
    Last updated -
    76
    • Linux
    • Apple