"Open Access" matching MCP servers:

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.

MCP server for Open-Xchange & standards-based mail: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts, free/busy.

Enables interaction with Apple apps like Messages, Notes, and Contacts through the MCP protocol to send messages, search, and open app content using natural language.

A Model Context Protocol (MCP) server that provides access to the Fastmail API, enabling AI assistants to interact with email, contacts, and calendar data.

An open-source Model Context Protocol (MCP) server that connects Claude, ChatGPT, and other AI assistants directly to your Zooza account. Natural language scheduling, attendance tracking, and class management — no dashboard required.

Provides AI agents with calendar access and syncing capabilities through the Model Context Protocol.

Enables access to iCloud mail, calendars, and contacts over MCP through IMAP/SMTP, CalDAV, and CardDAV, with configurable read/write and deletion permissions.

MCP server for Outlook — enables AI assistants to access email, contacts, and calendars via Windows COM interface.

A read-only MCP connector for inspecting HelloZen configuration, exposing four tools to list custom fields, pipelines, calendars, and workflows without write access or contact data exposure.

Enables agents to discover events, purchase tickets, and set reminders through MCP tools.

Provides read-only access to classic desktop Outlook mailbox and calendar on Windows, enabling safe email and calendar queries without any write capabilities.

Enables agents to query a locally resolved relationship mesh that joins mail, calendar, iMessage, and contacts into one per-person record, providing shared history, open items, recency, drift, and warmest-channel context without sending data off disk.

Provides AI assistants with read-only access to iCloud mail and calendar via IMAP and CalDAV, with opt-in write support for sending mail, managing events, and contacts.

An MCP server for managing kids' sports activities on Spond. Built for parents who want to give AI assistants access to upcoming matches, training schedules, and attendance.

Dingtalk MCP Server

Enables AI assistants to coordinate with other people's agents for trusted scheduling, encrypted file and note exchange, introductions, and group planning over open protocols.

Enables AI assistants to interact with Apple Notes, Reminders, and Calendar on macOS through MCP, all locally without API keys.

Enables an agent client to build a single-day shop handover plan and check whether entered tasks have coverage, surfacing exact time overlaps and other blockers that prevent a workable handover. Supports version-checked assignment, simulated helper acceptance, cancellation, time correction, and scope confirmation, reopening affected duties when a helper drops out while leaving the rest intact.

Integrates mailbox.org email and calendar services with Claude, enabling email search, composition, management, calendar access, and Sieve email filter configuration through a secure, locally-hosted interface.

Enables AI assistants to manage GoHighLevel CRM data including contacts, conversations, opportunities, calendars, and forms through MCP tools and resources.