Read Evenium events, guests, contacts and hotels; register guests and update contacts and statuses. For event teams who manage invitations, guests and attendance in Evenium. Hosted by usefulapi — connect from Claude, ChatGPT, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"evenium": {
"url": "https://evenium.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"evenium": {
"type": "http",
"url": "https://evenium.usefulapi.io/mcp"
}
}
}No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run these commands. The second one opens the login page:
Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
The AI lists the guests of an event by registration status, such as unanswered, confirmed or declined, with name, email and company, so you know whom to remind.
evenium_list_events evenium_list_guests
The AI reads the guest's current status and then sets it, for example to confirmed or declined. Changing the status can start the event's own workflows in Evenium.
Changes data · evenium_get_guest_status evenium_update_guest_status
The AI sets guests to present or no-show after check-in, so your attendance numbers are ready the same day.
Changes data · evenium_list_guests evenium_update_guest_post_status
The AI searches the address book, creates a missing contact and invites the person to an event as a guest. Invitation emails may follow Evenium's rules for that event.
Changes data · evenium_list_contacts evenium_create_contact evenium_create_guest
The AI lists the sessions and workshops of an event and the registrations to one session with their status and attendance.
evenium_list_event_parts evenium_list_event_part_registrations
The AI lists the hotels of an event and the room bookings of a guest with check-in and check-out dates, on accounts where hotels are available.
evenium_list_hotels evenium_get_guest_accommodations
The login page asks for your Evenium platform and Evenium API key.
Find it in your Evenium profile: My account → API key (Facility accounts on evenium.com), or Profile → API key on the evenium.net platform. The key acts with your account's rights. Your key is used only to call the Evenium API on your behalf; it is never shown to anyone.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Evenium platform and Evenium API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
Turn on the Evenium connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
evenium_list_events | read | List events List the events of the Evenium account, with id, title, dates, status and creation date. Filter by title (partial match), status and start/end/creation dates. Use an event id with the guest and session tools. GET /events. |
evenium_get_event | read | Get event One event by id: title, description, dates, status, site path and its fields (type, your external id, ...). GET /events/{eventId}. |
evenium_list_guests | read | List guests List the guests (invited contacts) of an event with name, email, company, registration status (e.g. CONFIRMED, DECLINED, UNANSWERED), category and fields. Filter by status, name, email, company or last update. GET /events/{eventId}/guests. |
evenium_get_guest | read | Get guest One guest of an event, by contact id or by guest code: name, email, status, category and fields (event-only fields flagged). Optionally include REGISTRATION (registrations to sessions), PRESENCE and SIGNATURE data. GET /events/{eventId}/guests/{contactId} or /guests/guestCode/{guestCode}. |
evenium_get_guest_status | read | Get guest status The registration status of one guest at an event (e.g. CONFIRMED, DECLINED, CANCELED). GET /events/{eventId}/guests/{contactId}/status. |
evenium_get_guest_post_status | read | Get guest attendance The attendance (post) status of one guest after the event: UNKNOWN, NO_SHOW or PRESENT. GET /events/{eventId}/guests/{contactId}/postStatus. |
evenium_get_guest_accommodations | read | Get guest accommodations The hotel room bookings of one guest at an event: room id, check-in and check-out dates, status. Not available on the evenium.net platform. GET /events/{eventId}/guests/{contactId}/accommodations. |
evenium_list_hotels | read | List hotels The hotels of an event with name, group, stars, contact details and, if asked, full location and rooms. Not available on the evenium.net platform. GET /events/{eventId}/hotels. |
evenium_create_guest | write | Create guest WRITE: invite a person to an event. Either invite an existing contact (contact_id) or create a guest from scratch (first_name, last_name, email, ...), which may also create a new contact. The optional status sets the registration status (the invitation emails of the event may follow Evenium's own rules). POST /events/{eventId}/guests. |
evenium_update_guest_status | write | Update guest status WRITE: set the registration status of a guest at an event (e.g. CONFIRMED, DECLINED, CANCELED). Can trigger Evenium's own workflows for that status. Read the current value first with evenium_get_guest_status. PUT /events/{eventId}/guests/{contactId}/status. |
evenium_update_guest_post_status | write | Update guest attendance WRITE: set the attendance (post) status of a guest: PRESENT, NO_SHOW or UNKNOWN (for example after check-in). PUT /events/{eventId}/guests/{contactId}/postStatus. |
evenium_list_contacts | read | List contacts List the contacts of the address book (id, your custom id, name, email, company and fields). Filter by name, email, company or last update. GET /contacts. |
evenium_get_contact | read | Get contact One contact by Evenium id or `ext:<customId>`: name, gender, email, company and fields. GET /contacts/{contactId}. |
evenium_get_contact_events | read | Get contact events The events a contact is invited to, with the contact's registration (status, post status, category) in each. Filter by event start, end or creation date. GET /contacts/{contactId}/events. |
evenium_create_contact | write | Create contact WRITE: add a contact to the address book (name, email, company, optional custom id and fields). Does not invite them to an event (use evenium_create_guest). May create a duplicate of an existing person: search with evenium_list_contacts first. POST /contacts. |
evenium_update_contact | write | Update contact WRITE: change a contact's email, company or fields (only what you pass is sent). The change applies to the contact everywhere, including its guest records. PUT /contacts/{contactId}. |
evenium_list_event_parts | read | List event sessions List the event parts (sessions, workshops, activities) of an event with title, dates, nature, code and location. Filter by title and start/end/update dates. GET /events/{eventId}/eventParts. |
evenium_get_event_part | read | Get event session One event part (session) by id: title, dates, nature, code, location and fields. GET /events/{eventId}/eventParts/{eventPartId}. |
evenium_list_event_part_registrations | read | List session registrations The registrations to one session: contact id, status, attendance, category and dates. With include_deleted, deleted registrations are returned too (status DELETED). GET /events/{eventId}/eventParts/{eventPartId}/registrations. |
evenium_usage_status | Usage status (free-tier meter) Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter. | |
evenium_request_feature | Request a missing feature Tell usefulapi that the user needs something the Evenium tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. | |
evenium_upgrade | Upgrade to Pro (unlimited*) Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on Evenium (the free tier caps monthly usage). Plans: "monthly" — $9/month; "yearly" — $90/year (2 months free). Cancel any time: Pro then runs to the end of the paid period, so it also suits a one-time job. *A fair use limit applies. For heavy use (near Pro's limit): "plus" or "plus_yearly" — Pro+, $39/month or $390/year, unlimited tool calls (fair use limit: 100,000 a month); an existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Otherwise returns a short link to open in your browser (it opens Stripe Checkout); after payment the account upgrades automatically. Does not count against the meter. | |
evenium_cancel_subscription | Cancel the Pro subscription Cancel the caller's Evenium Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run evenium_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper account | $9/mo · $90/yr | Unlimited* |
*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this Evenium server only. Subscribe with evenium_upgrade (it returns a Stripe Checkout link). Cancel any time with evenium_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running evenium_upgrade before then undoes the cancel. Or write to [email protected].
See who has not answered an invitation. Update a guest's status after an email reply. Mark attendance after the event. Invite people to an event. Review a session's registrations. Check hotel bookings for guests. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Evenium. The server calls the Evenium API with your own Evenium access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your Evenium platform and Evenium API key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Evenium platform and Evenium API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Evenium API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Evenium.
Yes, if you approve it. 5 of the 19 Evenium tools can create or change data. The other 14 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls (fair use limit: 10,000 tool calls a month), for this Evenium server only. Cancel any time: Pro then runs to the end of the paid period. Run evenium_usage_status to see how many calls you used.
Ask the AI to run evenium_upgrade: it returns a Stripe Checkout link. To cancel, run evenium_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with evenium_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.