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116,827 servers. Updated
20 Best Observability MCP Servers: compared and ranked, November 2026Ranked from 684 matching servers on stars, growth, downloads and maintenance. Updated .

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  • F
    license
    Not graded
    quality
    B
    maintenance
    Enables reading, converting, and managing email messages, calendars, and contacts, along with mail account folder/thread operations and personal name parsing/formatting, via typed MCP tools.
    -
  • A
    license
    A
    quality
    B
    maintenance
    Enables deterministic calculations for AI API and subscription costs, meeting time zones, recurring schedules, and cron next-run previews, returning normalized inputs, units, assumptions, dated sources, and links to results.
    5
    MIT
  • A
    license
    B
    quality
    C
    maintenance
    Enables comprehensive Google Meet and Calendar management through Google Calendar API v3 and Google Meet API v2, supporting calendar event creation with Meet links, space management, transcription, recording, attendance tracking, and meeting moderation controls.
    24
    2
    ISC
  • A
    license
    B
    quality
    C
    maintenance
    Exposes Korean-language utility tools to AI agents over a stdio MCP server, covering Hangul initial-consonant (chosung) extraction, conversion of integers into Korean currency words, lookup of Korean public holidays, and business-day checks for a given date.
    4
    Apache 2.0
  • A
    license
    Not graded
    quality
    F
    maintenance
    A Model Context Protocol server that enables AI assistants to interact with Microsoft Outlook for calendar management, email operations, and search functionality.
    15
    MIT
  • F
    license
    B
    quality
    Not graded
    maintenance
    A collection of tools that enable AI assistants to interact with Apple applications and services including Contacts, Notes, Messages, Mail, Reminders, Calendar, Maps, and Web Search through the Model Context Protocol.
    8
    1
    -
  • A
    license
    A
    quality
    B
    maintenance
    Provides exact calendar calculations from 1971 to 2100, including OPM and Federal Reserve holiday observance, business-day addition and counting, and invoice due dates with weekend and holiday roll rules.
    5
    307 npm
    MIT
  • A
    license
    B
    quality
    C
    maintenance
    An MCP server for managing Proton Mail, Pass, Drive, and Calendar through local IMAP/SMTP, pass-cli, and Proton Drive CLI, enabling AI agents to operate the mailbox, manage passwords, sync files, and classify emails.
    39
    109 npm
    AGPL 3.0
  • A
    license
    Not graded
    quality
    B
    maintenance
    Enables Claude to read intervals.icu training data — wellness metrics, completed activities with per-lap and time-series detail, and planned events with planned-versus-completed reconciliation — and to create, update, or delete planned run and bike workouts on the intervals.icu calendar, which syncs to Garmin Connect. Writes are guarded by dry-run defaults and explicit approval.
    29 npm
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables Claude to read recent Garmin training activities and wellness metrics and to create, update, or delete structured planned workouts through intervals.icu, which syncs them to Garmin Connect and the user's watch. It provides tools for reviewing recovery signals, listing upcoming calendar events, and pushing AI-designed sessions to the watch without exposing Garmin credentials.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables compatible AI assistants to remotely read and write iCloud calendars with configurable permissions. Supports event search, availability checks, creation, editing, deletion, invitation responses, time zones, recurring schedules, and map-ready locations.
    23 npm
    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.
    -
  • F
    license
    A
    quality
    C
    maintenance
    Enables local automation of classic Outlook for Windows via COM, allowing email search, folder listing, calendar leave block creation, and contact/recipient management without needing cloud APIs or admin approval.
    8
    -
  • A
    license
    C
    quality
    D
    maintenance
    Enables AI assistants to interact with Google Calendar through a simplified OAuth setup. Supports creating, editing, deleting, and searching calendar events without the complexity of Google Cloud Console configuration.
    4
    22 npm
    4
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    MCP servers for your Mac's real data — Mail, Calendar, files — with safety rails you can audit. Local-first, no accounts, no cloud, with dry-run defaults and human approval gates.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    A cloud relay server that bridges the GlassBridge smart glasses app with Google services like Gmail and Calendar via the Model Context Protocol. It provides secure OAuth authentication and WebSocket communication to enable voice-controlled tool execution on mobile devices.
    1
    AGPL 3.0
  • A
    license
    Not graded
    quality
    C
    maintenance
    Connects MCP clients such as ChatGPT and Claude to a user's Feishu tenant through OAuth, offering 91 read and write tools covering documents, wiki nodes, spreadsheets, Base records, calendar events, tasks, chats, and cloud files. Per-user authorization, isolated read/write scopes, and token rotation keep actions scoped to the consenting account.
    313 npm
    1
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables Claude Desktop to list calendars and events and to create, update, and delete entries in the macOS Apple Calendar store through EventKit. It runs entirely locally with no cloud service or network access.
    23 npm
    MIT
  • A
    license
    Not graded
    quality
    A
    maintenance
    Enables users to manage calendar events, reminders, notes, and remembered preferences through 13 MCP tools exposed over Streamable HTTP, backed by SQLite and zero cloud dependencies.
    MIT