"Cal.com" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Business days, meeting overlap and recurrence expansion, deterministic. 3 of 5 tools free.
Send WhatsApp and Telegram messages, manage reminders and check numbers in your WbizTool workspace.
Fair meeting times across time zones: find the overlap, convert times, make calendar links.
U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.
Find free times at Gaplessly businesses on a plan with AI booking, then get a link to book.
Hosted email MCP for your own Gmail, Outlook.com, Microsoft 365, iCloud or IMAP inbox: read, search, draft, reply in thread, forward and file mail. It moves or flags up to 500 messages in one call, and a send leaves exactly one copy in Sent. A calendar is a separate connection, and connecting one adds diary and scheduling tools.
Mac & Windows: let ChatGPT, Claude & Cursor use your email, calendar, iMessage, Teams, files.
Find open slots on any appty link and book solo providers. Providers manage bookings by API key.
Plan custom software with The2410: fit check, budget, timeline, inquiry and consultation booking.
Reach other people, and the AIs they use, from any app: message them, ask for a yes, agree a time.
Scheduling: event types, open slots, and booking, rescheduling or cancelling meetings in Caly.
Calm day planner for designers and freelancers. Read, add, time and move your tasks from Claude.
Discover meeting-coordination Envoys. Work in progress; identity discovery is coming soon.
Find open times and book, reschedule or cancel meetings on anyone's Tempi link. No account needed.
Search, summarize and organize your WhatsApp chats from Claude, ChatGPT or Cursor: contacts, groups, labels, notes, reminders and scheduled messages. Tool calls run in the Kaption extension for WhatsApp Web (Chrome, Edge) or the Kaption desktop app, which must be open. Sign-in is OAuth 2.1 with a code sent on WhatsApp. No send-now tool. Setup: https://kaptionai.com/mcp/
See your salon's free slots, appointments, stylists, services, clients, quotes and payments.
See your clinic's free slots, doctors, rooms, service prices and how busy each day is.
Deterministic date arithmetic with auditable receipts: business days, due dates, holidays.
Workshop agendas your AI can work in - every time recalculates itself.
Time and date math for AI agents: Unix timestamp conversion, DST-correct time zone conversion, durations, epoch arithmetic, cron schedules, and holiday countdowns. Eight tools, no key.
