"Firebase: Google's Backend-as-a-Service Platform" matching MCP connectors:

Reassign: a circular 24-hour calendar and time-tracking copilot with ADHD-friendly scheduling.

Free no-signup group scheduling (a modern When2meet): share one link, find a time for everyone.

Book a Ukrainian-speaking vertebrologist in Chernivtsi, Ukraine: find slots and book for the user.

Scheduling, availability, clients, billing and CRM for appointment-based services.

Invite someone to a calendar event by phone number and get their real email back when they accept.

Group scheduling: create a plan link, mark availability, get best times, lock the final time.

Agent-native CRM + get-booked platform. Operate over MCP, or pay per call via x402. No login.

AI-powered virtual assistant that connects to Gmail, Outlook, Slack, Salesforce, HubSpot, Google Calendar, DocuSign, QuickBooks, and 20+ other services. Manage your entire professional life through a single Claude conversation — email, calendar, CRM, documents, travel, expenses, and more.

Open-source MCP server that gives AI agents access to real email and calendar in one npm install. Solves the problem of AI agents hitting a wall when they need your inbox.

Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.

The Cronofy MCP Server allows AI tools to schedule meetings with the Cronofy Scheduler. It is an endpoint that supports the Model Context Protocol for adding Cronofy to your agentic workflows. It is a server that provides tool rather than search capabilities. You can add the Cronofy MCP Server to your environment and list the tools without authorization. However, authorization is required to call any of the tools provided.

SimplyBook.me is an online booking and scheduling platform for service-based businesses. Its MCP connector lets AI assistants create and manage bookings, look up client and appointment data, and check availability directly from a chat interface. Connect your AI assistant to your SimplyBook.me - Free Appointment Booking System booking account.

Connects ChatGPT to your Apple Calendar via a local Mac agent + Vercel relay

Choir management for AI assistants: events, RSVP, announcements and sheet music of your choir.

Google Events listings with dates, venues, and ticket links via a hosted MCP server.

Find available slots and manage bookings, users, and forms in the SuperSaaS scheduling service

A MCP server that works with Google Calendar to manage event listing, reading, and updates.

Manage a gym or studio: schedule classes, members, passes, memberships, staff and bookings.

Family calendar MCP server: read the family's week and propose changes a parent approves.

Turn a written schedule into a live calendar link people subscribe to in Apple, Google, Outlook.