"How to send a message on Slack" matching MCP servers:

将飞书日历 API 封装为 MCP 服务器，支持日历、日程、订阅和忙碌状态的查询与管理。

A self-hosted MCP server that provides secure access to iCloud Mail, Calendar, and Contacts, enabling agents to read and send email, manage calendar events, and search contacts with safety controls like approval for outgoing messages.

An MCP server to manage time tracking and time off on Woffu, allowing users to clock in days, view balances, request leave, and check team availability.

Enables AI agents to read and send email, handle attachments and manage calendar invitations through their own IMAP/SMTP mailboxes, with per-mailbox sender and recipient allow lists and automatic HTML-to-Markdown conversion. It runs as a single self-hosted Docker container, exposing the same tools over MCP and REST.

Enables AI assistants to interact with Fastmail services, providing tools for comprehensive email management, contact searching, and calendar event coordination via the JMAP API. It supports advanced features like threaded conversations, attachment handling, and bulk mailbox operations through natural language.

Enables AI apps to manage Google Calendar in plain language, including reviewing schedules, creating and changing events with guests and Google Meet, finding free time, and blocking Out of Office or Focus Time.

Enables AI agents to interact with Microsoft Teams through Microsoft Graph API, using delegated device-code authentication to act on behalf of the user.

Enables AI assistants to manage goals, tasks, weekly schedules, time tracking, reports, notes, and journal entries on a GoalSlot account through MCP tools.

A privacy-first MCP server for inbox triage, enabling masked email reading, calendar upsert, reply drafting, and Slack digests using Google and Slack credentials.

Enables Claude (or any MCP client) to read and write events on your iCloud calendars via CalDAV.

MCP server that gives Claude and other MCP hosts full access to Calendar.app on macOS — list, search, create, update, and delete events across all configured accounts.

An MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.

Enables read/write access to Apple Calendar on macOS by bypassing permission restrictions via JXA scripts, allowing users to manage calendar events through natural language.

MCP server for Claude to access on-premises Outlook/Exchange mailboxes via EWS with NTLM authentication, providing tools for email, calendar, and contact management without relying on Microsoft 365 or Graph API.

Enables AI agents to find open times on YouCanBookMe booking pages, book, reschedule and cancel bookings, and report on bookings, cancellations and no-shows in natural language.

Enables MCP clients to interact with CalDAV calendars, letting users view schedules, find free time, create and update events, manage tasks and dated notes, and respond to invitations on their own server.

An unofficial MCP server for Tend dental that aims to let users access their own Tend account data (e.g., appointments) via natural language. Currently it is scaffold-only with stub API calls and not yet functional.

MCP server for Evite that lets you read and act on events as guest or host: list events, view guest lists, RSVP, send messages, and create/edit events.

Book a table, an appointment or a place in a class at a real local business. Live availability, instant confirmation, no account and no API key. Eight tools: search, fetch, get_business, check_availability, create_booking, check_booking, cancel_booking and request_listing. Guest emails in eight languages. Hosted at https://g-guest.app/api/mcp

Safely schedule Outlook meetings on on-prem Exchange EWS with room-aware slot suggestions, local credentials, preview-confirmed writes, and audit-friendly lifecycle records.