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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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9,627 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • Yes or No MCP

    a-polishchuk
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    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

  • Materials Project MCP

    fair2wise
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    A tool for querying and analyzing materials data from the Materials Project database using natural language prompts, enabling materials scientists to explore properties, structures, and compositions of materials through conversational interfaces.
    Last updated -
    3
    1
    BSD 3-Clause

  • 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

  • Materials Project Platform MCP Server

    benedictdebrah
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    The Materials Project MCP Server is server that provides programmatic access to the Materials Project database. It enables LLMs, to search, analyze, and retrieve up to date materials science data.
    Last updated -
    2
    MIT License
    • Apple
    • Linux

  • Perplexity Tool for Claude Desktop

    letsbuildagent
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    A custom MCP tool that integrates Perplexity AI's API with Claude Desktop, allowing Claude to perform web-based research and provide answers with citations.
    Last updated -
    1
    4
    MIT License
    • Apple

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  • MCP Server for Cirro Data

    NorahZager
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    security
    F
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    This server enables multi-agent conversations for interacting with Cirro's biological data platform through its OpenAPI interface, auto-generated using AG2's MCP builder.
    Last updated -

  • Jenius MCP Smart Deviceofficial

    jenius-group
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    A server that enables control of smart home devices through the Jenius AI agent system, connecting to Home Assistant to manage devices like Xiaomi air purifiers and smart speakers.
    Last updated -
    14
    Apache 2.0

  • A Share MCP

    24mlight
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    A Model Context Protocol server providing tools for querying A-share stock market data, including historical prices, financial reports, market indices, and macroeconomic indicators.
    Last updated -
    27
    425
    MIT License

  • Materials MCP

    ZuchGuillotine
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    A Model Context Protocol server that provides access to materials databases through the OPTIMADE API, with focus on Google DeepMind's GNoME dataset containing millions of predicted crystal structures.
    Last updated -

  • mcp-data-extractor

    sammcj
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    A Model Context Protocol server that extracts embedded data (such as i18n translations or key/value configurations) from TypeScript/JavaScript source code into structured JSON configuration files.
    Last updated -
    2
    10
    8
    MIT License

  • MCP Tool

    PiuQiuPiaQia
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    A server built on mcp-framework that enables integration with Claude Desktop through the Model Context Protocol.
    Last updated -
    1
    1
    • Apple

  • A-Share MCP Server

    24mlight
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    A Model Context Protocol server focused on China's A-share stock market that provides data on stocks, financials, market indices, and macroeconomic indicators.
    Last updated -
    27
    425
    MIT License

  • db-mcp-tool

    wirdes
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    A powerful Model Context Protocol (MCP) tool for exploring and managing different types of databases including PostgreSQL, MySQL, and Firestore.
    Last updated -
    9
    5
    MIT License

  • MCP Think Tool

    DannyMac180
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    An MCP server that implements the 'think' tool, providing Claude with a dedicated space for structured thinking during complex problem-solving tasks to improve reasoning capabilities.
    Last updated -
    130
    MIT License
    • Linux
    • Apple

  • MCP Think Tool

    piotrpalek
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    An MCP server implementation of Anthropic's Think Tool prompt engineering technique that enables Claude to break down complex problems and enhance its reasoning capabilities by providing a simple tool that echoes back thoughts.
    Last updated -
    1
    1

  • mcp-tool-chainer

    thirdstrandstudio
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    An MCP (Model Context Protocol) server that chains calls to other MCP tools, reducing token usage by allowing sequential tool execution with result passing
    Last updated -
    109
    49
    MIT License

  • Twitter MCP Tool

    jalaj-pandey
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    A Python-based tool that streamlines social media tasks by enabling users to post tweets, track username changes, fetch recent tweets, and send direct messages on Twitter.
    Last updated -

  • MCP Data Wrangler

    shibuiwilliam
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    A Model Context Protocol server for data wrangling that provides standardized interfaces for data preprocessing, transformation, and analysis tasks including data aggregation and descriptive statistics.
    Last updated -
    16
    8
    MIT License
    • Linux
    • Apple

  • 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

  • Gemini MCP Tool

    jamubc
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    A Model Context Protocol server that enables AI assistants to interact with Google Gemini CLI, allowing them to leverage Gemini's large token window for analyzing files and codebases using natural language commands.
    Last updated -
    6
    40,910
    1,398
    • Apple
    • Linux

  • focus_mcp_data

    FocusSearch
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    security
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    The intelligent data query plugin under DataFocus that supports multi-round conversations provides plug-and-play ChatBI capabilities.
    Last updated -
    12
    Apache 2.0

  • Weather MCP Tool

    jalaj-pandey
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    An India-focused MCP server that provides real-time weather conditions, forecasts, air quality data, and location search capabilities using the OpenWeatherMap API.
    Last updated -

  • mcp-tool-builder

    hanweg
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    MCP server that builds itself by creating new tools as needed based on user requests (Requires restart of Claude Desktop to use newly created tools).
    Last updated -
    4
    27
    The Unlicense

  • Data Analysis MCP Server

    boyzhang666
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    Provides comprehensive statistical analysis tools for industrial data including time series analysis, correlation calculations, stationarity tests, outlier detection, causal analysis, and forecasting capabilities. Enables data quality assessment and statistical modeling through a FastAPI-based MCP architecture.
    Last updated -
    1

  • MCP Think Tool Server

    cgize
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    Implements Anthropic's 'think' tool for Claude, providing a dedicated space for structured reasoning during complex problem-solving tasks that improves performance in reasoning chains and policy adherence.
    Last updated -
    4
    63
    34
    MIT License

  • Personnel Data MCP Server

    ag2-mcp-servers
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    An MCP Server that provides access to Personio's HR and personnel data through the Personnel API, allowing interaction with employee records, HR systems, and personnel management functions.
    Last updated -
    • Linux
    • Apple

  • Fiscal Data MCP Server

    QuantGeekDev
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    Connects to the US Treasury's Fiscal Data API, enabling users to fetch specific treasury statements, access historical data, and generate formatted reports.
    Last updated -
    13
    14
    • Apple

  • MCP Data Analytics Server

    Edwin1719
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    A FastMCP-based server that provides data analysis tools for processing, analyzing, and visualizing data with an intuitive Streamlit web interface.
    Last updated -
    2
    MIT License

  • Claude MCP Data Explorer

    tofunori
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    A Model Context Protocol server that enables Claude to load CSV files and execute JavaScript data analysis scripts for advanced data exploration and insights generation.
    Last updated -
    2
    8
    MIT License