Connect WhenNOT once, then ask in plain words. Your assistant makes polls, chases the people who haven’t answered, finds open times on booking pages and books or moves your calls — and shows the result right in the chat.
https://whennot.com/api/mcpcreate_poll · invite_to_pollcreate_pollget_poll_results · remind_poll_participantsfind_open_timesbook_timelist_bookings · find_open_times · reschedule_bookingYou never call these yourself — your assistant picks the right one from what you ask. The names are here for the curious.
Whole days or time slots, for the dates you name, ready to share.
The ones you made, co-organise or answered, and invitations waiting for you.
Who answered, and the best dates — the ones with the fewest people out.
Emails an invitation to up to ten addresses at a time.
Emails the people who haven’t answered yet — at most once a day each.
Locks in the winner and, if you ask, tells everyone who answered.
Shows the dates to choose from, right in the chat.
Crosses out the days or times you can’t make, as you.
The pages you own or host, with their links.
What’s coming up on your pages, and the calls you booked on other people’s.
The times still free on a booking page, a week at a time, in your time zone.
Takes one of those times for you. You and the host get the invite.
Moves a call you booked. On your own page, it emails the guest new times to pick from.
Cancels a booking, removes the calendar event and tells both sides.
If your assistant lists WhenNOT in its connector directory, add it from there. Otherwise add it as a custom connector — the same few steps in either assistant. Menu names move around between versions; the address never changes.
https://whennot.com/api/mcphttps://whennot.com/api/mcpWhen you connect, WhenNOT lists what the assistant asked for — Polls, Booking pages or both — and nothing happens until you choose Allow. An assistant that didn’t ask for bookings can’t see or make any.
Details in the privacy policy.
No. The connector is free, like the rest of WhenNOT. Whether you can add custom connectors depends on your ChatGPT or Claude plan and settings.
No. It sees what WhenNOT shows you: your polls and their answers, your booking pages, your bookings and the open times on a page. WhenNOT does the calendar reading, the same way it does on the web.
No. They get an ordinary WhenNOT link or email and answer in any browser, without an account.
Only what the assistant sends to a tool — a poll name, the addresses to invite, a chosen time. It never receives your conversation.
The assistant loses access straight away, in every chat. Polls, answers and bookings it made stay as they are. Disconnect under Profile › Connected apps, or remove WhenNOT in the assistant’s settings.
WhenNOT is a standard remote MCP connector with sign-in, so an assistant that supports those can use it. We build and test it with ChatGPT and Claude.
Copy the connector address into ChatGPT or Claude, sign in, and ask for your first poll.
Free · See what it may do before you allow it · Disconnect any time