Gmail

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.

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

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.

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

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.

Feishu/Lark

Official

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