# AddEvent Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## AddEvent

Manage AddEvent calendars, events, RSVPs and subscribers from Muse.

- Record: https://musedirectory.ai/connector/addevent
- Category: Productivity
- Developer: usefulapi (https://usefulapi.io/addevent/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 161ms, checked 2026-10-29T10:45:49Z
- Endpoint: https://addevent.usefulapi.io/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T08:01:37Z)
- Source: Found in the official MCP Registry (io.usefulapi/addevent) https://registry.modelcontextprotocol.io/v0/servers?search=io.usefulapi%2Faddevent

Connect to AddEvent to read and manage calendars, create and update events, track RSVP attendees and calendar subscribers. Muse can help you organize events, respond to RSVPs, and keep your event information current.

Example request: "Create a new event on my calendar for next Tuesday at 2pm with a location and RSVP form."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use AddEvent to help me. It is a free service with an MCP server at https://addevent.usefulapi.io/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- addevent_list_calendars: List the account's calendars (newest first by default) with id, title, timezone, whether it is the default calendar, landing-page links and counts of events and subscribers. GET /calendars.
- addevent_get_calendar: One calendar by id: title, timezone, week start, template ids, subscriber and event counts, links, custom data. GET /calendars/{id}.
- addevent_create_calendar: WRITE: creates a new calendar in the AddEvent account (a new, empty calendar; nothing existing is changed and nobody is notified). Needs a title. POST /calendars.
- addevent_update_calendar: WRITE: changes fields of an existing calendar (only the fields you pass; the rest stay). Title, description and timezone changes show on its landing page and can reach people who subscribe to the calendar feed. Not reversible by this server (no previous values are kept), so read 
- addevent_list_events: Search the account's events (newest created first; by start time when a date filter is used): title, start/end, timezone, location, RSVP settings and stats, landing-page links. Filter by calendar, event ids, text, date window or a custom_data pair. GET /events.
- addevent_get_event: One event by id (evt-...): all fields incl. description, organizer, reminder, recurring rule, RSVP settings and stats, custom data and share links. GET /events/{id}.
- addevent_create_event: WRITE: creates a new event on a calendar (the account's default calendar if calendar_id is omitted). Creates a public event landing page and share links; it does not e-mail anyone, though people subscribed to that calendar's feed will see the event on their next sync. Needs title
- addevent_update_event: WRITE: changes fields of an existing event (only the fields you pass; the rest stay). The change goes live on its landing page and share links, and people who subscribed to the calendar or added the event with a live link are updated on their next calendar sync, so a time or loca
- addevent_list_rsvp_attendees: List RSVP attendees (personal data: e-mail addresses and the answers they gave on the RSVP form). Filter by calendar, event or response (going/maybe/not-going). Paged, 20 at most per page: read only what the task needs. IP address and coordinates are removed from the reply. GET /
- addevent_get_rsvp_attendee: One RSVP attendee by id (personal data: e-mail and form answers; IP address and coordinates removed). GET /rsvps/{id}.
- addevent_create_rsvp_attendee: WRITE: adds ONE RSVP attendee (one e-mail address, personal data) to an event. This server never asks AddEvent to send the confirmation or organizer notification e-mails, but the event's own reminder and follow-up e-mails (if the event has them) will later go to this address, so 
- addevent_update_rsvp_attendee: WRITE: changes ONE RSVP attendee (email, response or form answers; only the fields you pass). The event's reminder and update e-mails go to the e-mail address stored here, so changing it redirects those e-mails to that person. This server never triggers the confirmation or organi
- addevent_list_calendar_subscribers: List people subscribed to the account's calendars (personal data: the form answers they gave, such as name and e-mail; calendar app type, sync status). Paged, 20 at most per page. IP address and coordinates are removed. GET /subscribers.
- addevent_get_calendar_subscriber: One calendar subscriber by id (personal data; IP address and coordinates removed). GET /subscribers/{id}.
- addevent_list_rsvp_forms: The account's RSVP forms (id, name), newest first. Use the id as rsvp_form_id on an event. GET /events/rsvp-forms.
- addevent_list_event_templates: The account's event landing page templates (id, name), newest first. Use the id as landing_page_template_id on an event. GET /events/templates.
- addevent_list_calendar_templates: The account's calendar landing page templates or embeddable calendar templates (id, name), newest first. Use the id as landing_page_template_id / embeddable_calendar_template_id on a calendar. GET /calendars/templates.
- addevent_list_timezones: Timezone names AddEvent supports (use them as the timezone of events and calendars), with current UTC offset. Optional text filter on the name. GET /timezones.

Screening checks:
- MCP handshake: pass (Answered in 175ms)
- Domain against threat feeds (Cloudflare security DNS): pass (addevent.usefulapi.io, usefulapi.io not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (18 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)