"Open Collective" 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.

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.

Enables AI agents to search public Luma events near a geographic coordinate within a time window and fetch full public details for a single event. Results are returned as provider-neutral open event records with attendee data stripped, and read-only access keeps registration on the official event page.

Enables Claude Desktop to search and read emails, calendars, attachments, and free/busy data in classic Outlook via COM, and to create email drafts or open prefilled meeting invitations without sending anything.

Lets an AI assistant check your availability by reading private ICS subscription feeds and returning merged busy intervals or open free slots, while keeping event titles, notes, attendees, and feed URLs entirely on the server. Access is read-only and protected by OAuth with a single-account allowlist.

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.

Enables MCP clients to check clinic hours, list open slots, find the next available slot, and create idempotent appointment bookings at HeyDenta clinics through natural language tool calls. Runs over stdio or Streamable HTTP with built-in auth, retries, and a duplicate-booking guard.

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.

Enables AI assistants to connect to an Easy!Appointments booking system to find open slots, look up customers, and book, reschedule, or cancel appointments, with OAuth sign-in, per-connection access levels, and preview-confirmed changes.

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

Enables AI assistants to interact with Feishu/Lark Open Platform APIs for tasks like document processing, chat management, and calendar scheduling.

Enables AI assistants to work directly with a local Thunderbird client, providing roughly 40 tools to search and read mail, compose, reply and forward messages, manage folders, filters, contacts, calendars, events and tasks. Write operations open a review window by default, so nothing is sent or created without the user's confirmation.

Local MCP server for Thunderbird: read, search, and send emails and manage calendars, contacts, notes, and tasks across every mailbox (Gmail, Outlook, IMAP). Runs on your machine and talks to your Thunderbird locally — reads are open, writes are gated behind ATBRIDGE_ALLOW_WRITES.

Serves Claude Desktop a unified, actionable read of Google Calendar and Google Tasks, surfacing overdue items first, then the day's events, free slots, and open tasks, with explicit-request-only write tools for creating, updating, completing, and deleting. Google stays the sole source of truth with no server-side storage beyond the OAuth token and a 30-second read cache.

Muslim Prayer Reminder MCP is a free, open-source server for calculated Muslim prayer times in AI assistants. It supports location and regional calculation methods, daily timetables, next-prayer countdowns, and local or remote MCP clients.

Enables AI agents and scripts to run a Booksy Biz account through your own signed-in Chrome session, exposing 28 tools for appointments, open slots, time off, clients, services, staff, reviews, Message Blasts, and reports over MCP, REST, or Python. Read-only mode and confirmation-gated client-facing actions let you plan schedules, reschedules, and outreach with human approval.

Gives AI agents read-only access to patient context on any FHIR R4 server, including journey timelines of encounters and appointments, open booking slots, and discharged patients whose follow-ups were never booked. Search, appointment, and follow-up tools return compact summaries, so agents can answer front-desk and outreach questions without write access.

Enables AI assistants to answer a small business's customer questions from its own FAQs and order data, list upcoming open appointment times in the business's time zone, and book one of those offered slots with staff notification. Free for the first 1,000 businesses, using fast rule-based FAQ matching rather than free-form generation.

Read-only MCP server that enables astronomy session planning against the Telescopius REST API, covering target search and info, twilight and rise/set times, nightly weather forecasts, event calendars, news, observing lists and equipment. It can also open the Telescope Simulator in a headed browser to capture framing screenshots for a given rig or mosaic layout.

A local-first open-source MCP server that acts as a personal secretary, memory manager, and automation hub—it syncs Calendar, Gmail, Canvas, GitHub, and Health into a typed temporal memory graph, and enables approval-gated write actions like creating events, drafting/sending mail, and filing issues, all with telegram/slack/CLI interfaces and a SQLite-backed audit trail.

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

Exposes availability and appointment-proposal tools over stdio so an MCP client can query open slots and suggest bookings, without being able to create them—actual booking requires human confirmation through the separate UI/API. Slot claims are transactional and idempotent, and cancellation only releases a slot still owned by that booking.

Enables a voice assistant to run daily check-ins with family-written questions, record hedged answers honestly rather than as confirmed, reschedule follow-ups until a set time, and email a caregiver when a loop stays open. Includes a status summary, pausable check-ins, and a rendered result card for clients that support MCP Apps.

This is the Feishu/Lark official OpenAPI MCP (Model Context Protocol) tool designed to help users quickly connect to the Feishu/Lark platform and enable efficient collaboration between AI Agents and Feishu/Lark. The tool encapsulates Feishu/Lark Open Platform API interfaces as MCP tools, allowing AI assistants to directly call these interfaces and implement various automation scenarios such as document processing, conversation management, calendar scheduling, and more.

Chinese astrology computed by FateTell's own BaZi engine: cast a BaZi (八字, Four Pillars) chart from any birth date, open the charts saved in your FateTell account, and check today's fortune and the Chinese almanac. This repository holds the public metadata for the hosted server at mcp.fatetell.com: Claude, Cursor, Hermes and Gemini CLI packages, the Registry entry and the fatetell-bazi skill.