Integration · Scheduling

Connect Claude & ChatGPT to AddEvent

Ask your AI to set up an event, list who has said yes, or check who subscribes to a calendar. It can create and update calendars and events, search events by text or date, add and update RSVP attendees and read calendar subscribers in AddEvent.

Connect AddEvent free

Free plan, no credit card. Takes about a minute.

Try asking

“Create a webinar event on 14 May at 15:00 Copenhagen time with RSVP on.”
The AI creates the event with title, start time, timezone and RSVP turned on.
“Who has said yes to the product launch?”
It finds the event and lists the RSVP attendees who are attending.
“Move the team breakfast to 9:30.”
It updates the event's start time, and subscribers' calendars pick up the change.

What your AI can do

Calendars

Create, read and update calendars with title, timezone, description and colour, and list their subscribers.

Events

Search, create and update events with time, location, organizer and RSVP settings, and delete an event.

RSVPs

List RSVP forms, add and update attendees, and filter attendees by event, calendar or attending status.

“Add [email protected] to the launch event and let her know.”
It adds her as an RSVP attendee and, with notify on, AddEvent emails her.
“Who subscribes to our Events calendar?”
It lists the subscribers of that calendar.
“Which events do we have in March?”
It searches events in that date range and lists them with their IDs.

16 tools for AddEvent

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

add_event_rsvpChanges dataAdd an RSVP attendee to an event (`event_id`) by `email`, with optional `attending` and form data. Set `notify` to email the attendee.
create_calendarChanges dataCreate a calendar with a `title`; optional timezone, description and colour.
create_eventChanges dataCreate an event with `title` and `datetime_start`; optional datetime_end, timezone, location, description, calendar_id, organizer and rsvp_enabled.
delete_eventDeletesPermanently delete an event by `event_id`. It disappears from subscribers' calendars and cannot be undone.
get_calendarGet one calendar by `calendar_id`.
get_eventGet one event by `event_id`, including time, location and RSVP settings.
get_rsvpGet one RSVP attendee by `attendee_id`.
get_subscriberGet one calendar subscriber by `subscriber_id`.
list_calendarsList calendars, optionally filtered by `calendar_ids`, with sorting and paging. Use to find a calendar ID.
list_rsvp_formsList the RSVP forms you can attach to events.
list_rsvpsList RSVP attendees, filtered by `event_ids`, `calendar_ids` or `attending`.
list_subscribersList calendar subscribers, filtered by `calendar_ids` or `status`.
search_eventsSearch events by text (`search`), `calendar_ids`, `event_ids` or a date range (`datetime_min`, `datetime_max`). Use to find an event ID.
update_calendarChanges dataUpdate a calendar's title, timezone, description or colour by `calendar_id`. Only the fields you pass change.
update_eventChanges dataUpdate an event by `event_id`. Only the fields you pass change; subscribers' calendars pick up the change.
update_rsvpChanges dataUpdate an RSVP attendee by `attendee_id`: email, attending status or form data.

Set up in three steps

1
Pick the app
Create a free PipMCP account and choose AddEvent from the app list.
2
Paste your key
Paste your AddEvent API key. Log in to AddEvent and open Account settings (dashboard.addevent.com/account/settings) to see the key, then copy it.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
1. Click your name, then Settings › Connectors › Add custom connector.
2. Paste your link as the Remote MCP server URL.
3. Switch it on from the + menu in a chat.

Questions

What can the AI do in AddEvent?

The AI can read and search calendars, events, RSVP attendees, RSVP forms and calendar subscribers. It can create and update calendars and events, add and update RSVP attendees, and delete an event if you switch that tool on.

Does the AI see my AddEvent API key?

No. Your AddEvent API key is encrypted at rest and never shown to the AI. After you save it, it is not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on, so you can start read-only. Deleting an event removes it from subscribers' calendars and cannot be undone, so it can require your approval before it runs. Every tool call is logged.

Does it work with ChatGPT?

Yes. In ChatGPT go to Settings › Apps & Connectors › Advanced and turn on Developer mode, then add your PipMCP link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.

What does it cost?

PipMCP has a free plan with no credit card required. Paid plans bill per completed task. You also need your own AddEvent account.

What happens for subscribers when the AI changes an event?

When the AI updates an event, subscribers' calendars pick up the change. When it deletes an event, the event disappears from their calendars and cannot be restored. You can switch off delete_event or require approval for it.