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116,602 servers. Updated
20 Best Calendar MCP Servers: compared and ranked, November 2026Ranked from 1,650 matching servers on stars, growth, downloads and maintenance. Updated .

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  • F
    license
    A
    quality
    D
    maintenance
    Enables full read/write control over Apple Mail.app and Calendar.app on macOS, exposing all configured accounts without per-provider setup.
    51
    1
    -
  • A
    license
    Not graded
    quality
    D
    maintenance
    An MCP server that enables AI assistants to interact with Google Calendar and Gmail, allowing users to manage events, send emails, and organize their inbox through natural language.
    MIT
  • F
    license
    Not graded
    quality
    B
    maintenance
    Enables Claude to query and manage Mail2000 calendar events, including agenda, search, booking, updating, and deleting events through natural language.
    -
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables access to iCloud mail, calendars, and contacts over MCP through IMAP/SMTP, CalDAV, and CardDAV, with configurable read/write and deletion permissions.
    2
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    A local server that lets Claude Desktop or Claude Code read, search, triage and draft messages, view and add calendar events, and look up or create contacts, all signing in with a single Apple app-specific password. It defaults to drafting rather than sending and offers a read-only mode, plus recipient allowlists, so nothing changes or leaves your account unless you explicitly allow it.
    PolyForm Noncommercial 1.0.0
  • A
    license
    Not graded
    quality
    B
    maintenance
    Enables an AI assistant to read, search, triage and send mail, manage calendars and browse, write and organize notes by driving the Mail, Calendar and Notes apps already on a Mac, with no dependencies, no network code and only two permission prompts.
    MIT
  • F
    license
    Not graded
    quality
    D
    maintenance
    Connects multiple Gmail and Google Calendar accounts to Claude Desktop locally, enabling email management (search, send, draft, label) and calendar operations (list events, search) via natural language.
    -
  • F
    license
    B
    quality
    C
    maintenance
    MCP server providing AI assistants with full access to Microsoft Outlook email and calendar via the Microsoft Graph API, featuring 26 tools for mail, calendar, contacts, and scheduling with delegated authentication.
    29
    -
  • A
    license
    Not graded
    quality
    D
    maintenance
    MCP server to interact with Google Gmail and Calendar APIs. Supports multiple accounts, email search and drafting, and calendar event management.
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Enables interacting with Gmail and Google Calendar across multiple Google accounts, allowing email search, thread retrieval, draft creation, label management, and calendar event viewing, creation, and updating through natural language.
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    MCP server that connects Gmail and Google Calendar to AI assistants, enabling email search, reading, sending, and calendar management across multiple accounts with secure OAuth.
    1
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    Provides read-only access to classic desktop Outlook mailbox and calendar on Windows, enabling safe email and calendar queries without any write capabilities.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Unified email and calendar management with AI agent, supporting email operations, calendar availability, and time blocking via MCP tools.
    19
    Apache 2.0
  • A
    license
    Not graded
    quality
    D
    maintenance
    Enables to manage Zimbra emails, tags, calendar, and contacts through natural language. Supports searching, sending, drafting emails, managing contacts, tags, and calendar events.
    5
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables MCP clients to access a personal Outlook.com mailbox and calendar through Microsoft Graph, supporting email search, reading, drafting, sending, organization, and calendar event management.
    100 npm
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Enables access to Outlook email and calendar tools from Pi by reusing an existing Codex Outlook connection, without a separate Microsoft login in Pi. Supports reading profile and calendar data plus email and calendar operations, including writes, through the agent session.
    MIT
  • A
    license
    Not graded
    quality
    A
    maintenance
    Enables managing Gmail inbox and Google Calendar through MCP, with tools for email operations and calendar events.
    27 npm
    AGPL 3.0
  • A
    license
    Not graded
    quality
    D
    maintenance
    A policy-enforcing MCP sidecar that provides Gmail and Google Calendar tools, enabling email drafting, thread management, calendar event retrieval, and time suggestions with server-side recipient and visibility policies.
    ISC
  • A
    license
    Not graded
    quality
    B
    maintenance
    Local MCP server for reading/sending email via Gmail and managing Google Calendar events, enabling an AI agent to handle email and calendar operations through natural language.
    MIT
  • F
    license
    Not graded
    quality
    D
    maintenance
    A local MCP server that connects multiple Gmail accounts and Google Calendars to Claude Desktop, enabling email and calendar operations via natural language.
    -
  • A
    license
    A
    quality
    A
    maintenance
    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.
    50
    67 PyPI
    5
    MIT