Communication Servers

Provides IMAP/SMTP email access for reading messages and sending emails with secure connection support and environment-based credential management.

Provides a bridge between Microsoft 365 services and natural language interfaces, enabling access to email, calendar, OneDrive files, and Excel operations through the Microsoft Graph API with simplified authentication and parameter handling.

Slack

Experience the most powerful MCP server for Slack workspaces with advanced message and channel support. This feature-rich server allows fetching messages from channels, threads, DMs, and group DMs with embedded user info and smart history pagination by date or count. It supports enterprise workspaces, caching for faster access, and flexible transports like Stdio and SSE with proxy settings. Designed for stealth operation or secure access via OAuth, it integrates channel and thread lookups by name or ID to give rich, contextual Slack workspace data efficiently and reliably. Perfect for developers needing robust Slack data handling.

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.

Integrates with Asterisk phone systems to enable outbound call operations, conversation monitoring, call history retrieval, and telephony system metrics tracking for business automation workflows.

Provides multi-channel notification capabilities through desktop notifications, email via SMTP, and HTTP API endpoints with a single tool that simultaneously delivers alerts across all configured channels.

Enables sending customizable messages to external webhook endpoints, facilitating automated notifications and workflow integrations.

Bridges AI with Telegram to enable monitoring, organizing, and responding to messages through account access, dialog management, and conversation handling capabilities

Connects to Fastmail servers via JMAP protocol to enable email reading, searching with advanced filters, and content retrieval for conversational email management.

Interact with X (Twitter) by posting tweets and searching for tweets through the X API.

Integrates with Microsoft Teams through Graph API to search messages, manage chats and channels, send messages, create group chats, and handle user/team operations with device code authentication for secure access.

Feishu/Lark

Official

Integrates with Feishu/Lark's collaboration suite, enabling AI assistants to interact with productivity tools through the official Node.js SDK.

Sinch

Official

Integrates with Sinch's communication APIs to send messages across SMS, WhatsApp, RCS, and email channels, manage voice calls and conferences, and perform phone number verification and lookup operations with multi-region support and webhook event tracking.

Enables remote control of Android phones through ADB commands for making calls, sending texts, taking screenshots, managing contacts, launching apps, and retrieving system information.

Mailtrap Email API

Official

Enables sending transactional emails through the Mailtrap Email API.

Integrates Gmail functionality, enabling email search, message retrieval, and attachment downloads via Google Apps Script.

Integrates with Discord through Discord.js to provide comprehensive bot capabilities including message management, channel operations, forum posts, reactions, webhooks, and server administration with automatic reconnection and rate limiting protection.

Integrates with email providers to enable sending and receiving emails, automating workflows and managing communications via IMAP and SMTP functionality.

Integrates WeCom (WeChat Work) bot functionality for enterprise messaging, notifications, and interactive chatbots.

Provides a TypeScript-based server for interacting with Twitter, enabling tweet operations, user profile management, and Grok AI integration through multiple authentication methods.

Integrates with Twitter/X API using dual OAuth authentication (1.0a and 2.0) to enable tweet posting with media attachments, tweet searching, and tweet deletion with intelligent rate limiting designed for free-tier API usage.