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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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9,519 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

  • MCP Evolution API

    aiteks-ltda
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    A Model Context Protocol server that enables Claude to interact with WhatsApp through the Evolution API, allowing for message sending, contact management, group operations, and WhatsApp instance administration.
    Last updated -
    1
    60
    20
    MIT License
    • Apple

  • Evolution API WhatsApp MCP Server

    luiso2
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    Enables WhatsApp Business messaging through Evolution API with support for creating instances, sending messages using dynamic templates, and managing contacts and groups. Includes 10+ predefined message templates for common business scenarios like order confirmations, appointment reminders, and promotional messages.
    Last updated -
    25

  • WhatsApp Web MCP

    fyimail
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    A bridge that connects WhatsApp Web to AI models using the Model Context Protocol, enabling Claude and other AI systems to interact with WhatsApp through a standardized interface.
    Last updated -
    7
    6
    MIT License
    • Linux
    • Apple

  • Email MCP Server

    TimeCyber
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    An MCP service that enables AI to fully manage email accounts, supporting sending emails with attachments and multiple recipients across various email providers.
    Last updated -
    7
    27
    13
    MIT License

  • Calendar MCP

    wyattjoh
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    MCP server for accessing macOS Calendar events
    Last updated -
    MIT License
    • Apple

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  • WhatsApp MCP Server

    gfb-47
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    A Node.js application that enables programmatic interaction with WhatsApp desktop on macOS, allowing users to send messages and check WhatsApp status through AppleScript automation without direct UI interaction.
    Last updated -
    3
    4
    • Apple

  • WhatsApp MCP Server

    jlucaso1
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    A Model Context Protocol server that connects your personal WhatsApp account to AI agents like Claude, enabling them to search messages, view contacts, retrieve chat history, and send messages via WhatsApp.
    Last updated -
    7
    37
    • Apple
    • Linux

  • Email MCP

    guangxiangdebizi
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    A Model Context Protocol server that enables AI models to send emails via simple tool calls, supporting both plain text and HTML formats with JWT authentication.
    Last updated -
    1
    11
    6

  • email-mcp

    henroger
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    using aigeon.ai as ESP to send emails
    Last updated -
    1

  • WhatsApp MCP Server

    msaelices
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    A Python server that enables language models like Claude to interact with WhatsApp Business API through GreenAPI, supporting features like sending messages and managing groups.
    Last updated -
    5
    20
    MIT License

  • MCP Email Service

    leeguooooo
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    A Model Context Protocol service for comprehensive email management that supports multiple email providers, with complete functionality for viewing, organizing, and batch processing emails.
    Last updated -
    10
    • Apple
    • Linux

  • MCP-Email-Verify

    Abhi5h3k
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    A lightweight Model Context Protocol (MCP) server that enables your LLM to validate email addresses. This tool checks email format, domain validity, and deliverability using the AbstractAPI Email Validation API. Perfect for integrating email validation into AI applications like Claude Desktop.
    Last updated -
    1
    2

  • Titanmind WhatsApp MCP

    TitanmindAGI
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    A WhatsApp marketing and messaging service that handles both free-form messages and template workflows, enabling conversation management, template creation/broadcasting, and bulk messaging capabilities.
    Last updated -
    6
    15
    MIT License
    • Apple
    • Linux

  • Google Calendar

    GongRzhe
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    Google Calendar integration in Cursor IDE. This server enables AI assistants to manage Google Calendar events through natural language interactions.
    Last updated -
    0
    5

  • MCP Email Server

    ai-zerolab
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    Provides IMAP and SMTP capabilities, enabling developers to manage email services with seamless integration and automated workflows.
    Last updated -
    4
    83
    BSD 3-Clause
    • Apple
    • Linux

  • Email Sending MCP

    resend
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    A simple MCP server that enables users to send emails using Resend's API, integrating with tools like Cursor and Claude Desktop for seamless email composition and delivery.
    Last updated -
    3
    396
    • Apple

  • Titanmind WhatsApp MCP

    TitanmindAGI
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    security
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    license
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    quality
    A WhatsApp marketing and messaging service that handles both free-form messages (within 24-hour window) and template workflows for bulk messaging, supporting conversation management and template creation/registration.
    Last updated -
    6
    15
    MIT License
    • Apple
    • Linux

  • lol-client-mcp Public

    johnnyinlee
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    An MCP (Model-Controller-Processor) server for accessing League of Legends client data. This server provides a collection of tools that communicate with the League of Legends Live Client Data API to retrieve in-game data.
    Last updated -
    12
    7
    Apache 2.0

  • Lemon Email MCP Server

    manojk0303
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    Enables AI agents to send transactional emails programmatically through the Lemon Email API. Provides simple email sending capabilities with customizable sender information, recipients, and content.
    Last updated -
    1
    MIT License

  • With-MCP

    janwilmake
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    Middleware that converts a serverless handler with OpenAPI spec into an MCP endpoint following stateless MCP principles.
    Last updated -
    302
    34
    MIT License

  • Google Calendar MCP

    nspady
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    Lets LLMs read and manage Google Calendar events.
    Last updated -
    995
    622
    MIT License
    • Apple

  • Email Checker MCP Server

    ravinahp
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    Enables users to validate the existence of email addresses through a simple FastMCP tool, offering JSON responses without requiring an API key.
    Last updated -
    1
    • Apple

  • WhatsApp Business API MCP Server

    ag2-mcp-servers
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    An MCP (Multi-Agent Conversation Protocol) Server that enables interaction with the WhatsApp Business API, allowing agents to send messages, manage media, and perform other WhatsApp business operations through natural language.
    Last updated -

  • Google Calendar MCP

    AnByoungHyun
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    license
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    A server that enables Cursor users to view, create, and manage Google Calendar events through natural language commands using the MCP protocol with Google OAuth2 authentication.
    Last updated -
    5
    • Apple

  • MCP Email Server

    Shy2593666979
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    A Model Context Protocol server that enables LLMs to compose and send emails with attachments, as well as search for files in specified directories that match given patterns.
    Last updated -
    52
    MIT License
    • Linux

  • Cline Email MCP Auto-Setup

    anselmwang
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    Automatically configures email notification functionality for Cline through SMTP integration. Enables Cline to send email notifications for task completion, errors, or user input requirements with automated setup and testing.
    Last updated -
    • Apple
    • Linux

  • Google Calendar MCP Server

    thisnick
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    Allows interaction with Google Calendar through Claude Desktop using the Model Context Protocol, enabling calendar event management and schedule analysis.
    Last updated -
    2
    • Apple

  • Calendar Tools MCP Server

    cablate
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    Enables comprehensive calendar management with capabilities to create, list, update, and delete events through a Model Context Protocol server integrated with Google Calendar.
    Last updated -
    15
    3
    MIT License

  • ScottOS MCP Calendar Server

    sschucktown
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    security
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    Enables ChatGPT to interact with Google Calendar through a remote MCP server. Provides tools to list, create, update, and delete calendar events with OAuth authentication.
    Last updated -