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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.

8,053 servers. Last updated -

Matching MCP tools:

Matching MCP servers:

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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.
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    An MCP server that enables interaction with Twilio's Verify API, allowing users to manage phone verification services through natural language commands.
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    Python
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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.
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    JavaScript
    MIT License
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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.
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    Provides IMAP and SMTP capabilities, enabling developers to manage email services with seamless integration and automated workflows.
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    64
    Python
    BSD 3-Clause
    • Apple
    • Linux

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  • A
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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.
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    • Apple
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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.
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    TypeScript
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    This read-only MCP Server allows you to connect to Email data from Claude Desktop through CData JDBC Drivers. Free (beta) read/write servers available at https://www.cdata.com/solutions/mcp
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    MIT License
    • Apple
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    An MCP server that integrates with Hunter.io API to find and verify email addresses using domain and name information.
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    JavaScript
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    MCP server that integrates with Gmail to enable sending, reading, and managing emails through tools like send-email, trash-email, get-unread-emails, and read-email.
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    56
    Python
    GPL 3.0
    • Apple
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    An MCP-based email tool that enables AI models to access email services through standardized interfaces, allowing AI assistants to perform various email operations like sending emails, reading inboxes, and handling attachments.
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    TypeScript
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    Integrates with Mailtrap Email Platform to enable sending transactional emails via API.
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    TypeScript
    MIT License
    • Apple
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    An MCP server that allows Claude Desktop or Cursor to send emails directly using Resend's API, eliminating the need to copy-paste email content.
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    A Model Context Protocol server that enables applications to interact with Gmail through a clean API, supporting email searching, sending, reading, and label management.
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    Python
    MIT License
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    A Model Context Protocol server that enables AI assistants to interact with Gmail services, supporting email operations, draft management, and calendar functionality through Google API integration.
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    TypeScript
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    Enables users to manage Gmail accounts using AI agent-assisted operations via an MCP protocol, supporting email search, reading, deletion, and sending with a voice-powered interface.
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    TypeScript
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    Manage your emails effortlessly with a standardized interface for drafting, sending, retrieving, and organizing messages. Streamline your email workflow with complete Gmail API coverage, including label and thread management.
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    JavaScript
    MIT License
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    Integrates with Gmail to enable sending, reading, drafting, and managing emails via the Model Context Protocol (MCP), allowing users to interact with email tasks through automated client prompts.
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    Python
    GPL 3.0
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    A Model Context Protocol server that enables Claude to interact with Gmail through a secure OAuth2 connection, providing email management capabilities like listing, sending, deleting, and organizing emails.
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    JavaScript
    MIT License
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    A Model Context Protocol server that enables Claude AI to interact with Gmail, supporting email sending, reading, searching, labeling, draft management, and batch operations through natural language commands.
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    Python
    MIT License
    • Apple
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    A Model Context Protocol server that enables email operations through POP3 and SMTP protocols in Cursor AI, allowing users to send, receive, list, and manage emails using natural language commands.
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    5
    TypeScript
    MIT License
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    Enables interaction with Gmail through the Gmail API to read, send, and manage emails. Supports multiple Gmail accounts with real-time monitoring and advanced features for email search and attachment handling.
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    Python
    Apache 2.0
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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.
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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.
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    Python
    MIT License
    • Linux
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    using aigeon.ai as ESP to send emails
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    Processes emails from Outlook with date filtering, storing them in SQLite databases while generating vector embeddings for semantic search capabilities in MongoDB.
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    Python
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    A Model Context Protocol server that enables AI assistants like Claude to interact with Gmail through natural language, providing comprehensive email management capabilities including sending, reading, organizing, searching, and managing drafts and labels.
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    4
    Python
    GPL 3.0
    • Apple
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    Validates URLs and checks their reputation to help identify AI hallucinations and verify web page authenticity.
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    Python
    MIT License
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    Provides an interface to manage email marketing, contact lists, dynamic templates, and email analytics via SendGrid's API.
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    TypeScript
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    Captures screenshots of web pages using Puppeteer, allowing AI agents to visually verify web applications and see their progress when generating web apps.
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    26
    JavaScript
    MIT License
    • Apple
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    Enables complete management of Mailcow email servers through 20 MCP tools including domain management, mailbox operations, email sending, queue management, sync jobs, and system monitoring. Provides AI models with full control over email server infrastructure through secure API integration.
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    TypeScript