MCP server

AddEvent MCP by usefulapi

io.usefulapi/addevent

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Read AddEvent calendars, events, RSVPs and subscribers; create and update calendars and events.

Website Source

At a glance

Type

MCP server

Publisher

usefulapi.io (verified by the MCP Registry)

Status

Working at last check

Tools

18

Token cost

About 6,819 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http addevent https://addevent.usefulapi.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.addevent]
url = "https://addevent.usefulapi.io/mcp"

Gemini CLI

{"mcpServers":{"addevent":{"httpUrl":"https://addevent.usefulapi.io/mcp"}}}

Cursor

{"mcpServers":{"addevent":{"url":"https://addevent.usefulapi.io/mcp"}}}

VS Code

{"servers":{"addevent":{"type":"http","url":"https://addevent.usefulapi.io/mcp"}}}

Antigravity

agy mcp add addevent https://addevent.usefulapi.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"addevent","server_url":"https://addevent.usefulapi.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"addevent","server_url":"https://addevent.usefulapi.io/mcp"}

Tools

• addevent_create_calendar ~471 tokens
  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_create_event ~1035 tokens
  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 and datetime_start.
• addevent_create_rsvp_attendee ~418 tokens
  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 only add someone who
• addevent_get_calendar ~152 tokens
  One calendar by id: title, timezone, week start, template ids, subscriber and event counts, links, custom data. GET /calendars/{id}.
• addevent_get_calendar_subscriber ~153 tokens
  One calendar subscriber by id (personal data; IP address and coordinates removed). GET /subscribers/{id}.
• addevent_get_event ~170 tokens
  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_get_rsvp_attendee ~153 tokens
  One RSVP attendee by id (personal data: e-mail and form answers; IP address and coordinates removed). GET /rsvps/{id}.
• addevent_list_calendar_subscribers ~398 tokens
  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_list_calendar_templates ~154 tokens
  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_calendars ~317 tokens
  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_list_event_templates ~88 tokens
  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_events ~622 tokens
  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_list_rsvp_attendees ~466 tokens
  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 /rsvps.
• addevent_list_rsvp_forms ~78 tokens
  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_timezones ~163 tokens
  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.
• addevent_update_calendar ~509 tokens
  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 the calendar first.
• addevent_update_event ~1092 tokens
  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 location change can noti
• addevent_update_rsvp_attendee ~380 tokens
  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 organizer notification e-m

Browse

• Email
• Calendars
• To-do lists

Related MCP servers

• Applystead
  Search open jobs from employers' own career sites: roles, companies and posting status.
• Cronofy MCP by usefulapi
  MCP server for Cronofy — read calendars, events and free/busy, and create, update or delete events.
• Nylas MCP by usefulapi
  MCP server for Nylas — read email, calendars, events and contacts, and send email or create events.
• Teamup Calendar MCP by usefulapi
  Read and search Teamup Calendar events and sub-calendars; create, update, delete and undo events.
• YouSpot
  Query one person's second brain: contacts, companies, notes, files and connected accounts.
• Elvanto MCP by usefulapi
  Look up people, groups, service rosters, songs, follow-up flows and giving in Elvanto.
• WaiverFile MCP by usefulapi
  Read WaiverFile waivers, events, forms and SMS opt-ins; create and update events, invite managers.
• CentralStationCRM MCP by usefulapi
  Read CentralStationCRM people, companies, deals, tasks; create and update people, companies, deals.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.usefulapi/addevent.svg)](https://aptlynx.net/servers/io.usefulapi/addevent)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents