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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.

9,447 servers. Last updated -

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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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    Integrates with Mailtrap Email Platform to enable sending transactional emails via API.
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    MIT License
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    Enables interaction with Google Cloud services including billing cost analysis, log querying, and metrics monitoring through natural language commands. Provides comprehensive tools for managing GCP resources, analyzing costs, detecting anomalies, and retrieving operational insights.
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    Apache 2.0
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    Enables AI agents to break down complex tasks into manageable pieces using a structured JSON format with task tracking, context preservation, and progress monitoring capabilities.
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    MIT License
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    An MCP Server that provides a conversational interface to the UK Open Banking account information API, allowing agents to interact with bank account data through natural language commands.
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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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    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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    GPL 3.0
    • Apple
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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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    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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    GPL 3.0
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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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    MIT License
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    Enables sending emails through AWS Simple Email Service with support for single emails, bulk personalized emails, and template management. Deployed on Cloudflare Workers for fast, global edge performance with full TypeScript type safety.
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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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    MIT License
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    A server that allows Claude to search and retrieve emails from your Gmail account, supporting functions like searching emails, retrieving full content of specific emails, and listing recent messages.
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    Apache 2.0
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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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    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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    MIT License
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    A Python-based Model Context Protocol server that allows AI assistants like Claude to access and query your movie and TV show collection via Radarr and Sonarr APIs.
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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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    GPL 3.0
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    using aigeon.ai as ESP to send emails
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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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    Apache 2.0
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    Enables AI assistants to interact with Gmail accounts via IMAP, allowing them to list, search, read, and send emails, manage labels and folders, and access attachments through the Model Context Protocol.
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    An MCP server that enables Gmail integration, allowing users to manage emails (send, receive, read, trash, mark as read) directly through MCP clients like Claude Desktop.
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    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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    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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    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.
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    MIT License
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    A headless server that enables reading and sending Gmail emails through API calls without requiring local credentials or browser access, designed to run remotely in containerized environments.
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    MIT License
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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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    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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    An integration server that provides Claude Desktop access to Gmail, enabling users to view recent emails and search their Gmail inbox using natural language commands.
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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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    BSD 3-Clause
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    A Model Context Protocol server that enables AI assistants to manage Gmail through natural language interactions with features like sending emails, searching, and label management.
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    2,785
    MIT License
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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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    Provides comprehensive Gmail integration with LLM processing capabilities, allowing users to read, search, filter emails and handle attachments through the Model Context Protocol.
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    MIT License