Scheduling, built into your product.
The same engine behind Calendeur's booking pages, available to your app, your backend and your AI agents. Every booking gets real availability, conflict protection, calendar invites, meeting links and reminders, whichever way it comes in.
curl "https://calendeur.com/api/v1/availability?event_type_id=evt_30min&days=5" \
-H "Authorization: Bearer $CALENDEUR_API_KEY"REST API
Availability, bookings, contacts, routing forms and meeting notes over HTTPS with scoped keys.
API referenceWebhooks
Signed, real-time events when meetings are booked, moved, cancelled or summarized.
Event catalogueMCP server
Let Claude, Cursor or your own agents check availability and book meetings, with the same permissions.
Connect an agentOne engine, every channel
Bookings from your React app, your backend, a partner integration or an AI agent all run through the same logic as Calendeur's own pages. You don't re-implement availability, time zones, calendar sync or reminders; you call the API and get back a confirmed meeting.
Real availability
Working hours, every connected calendar, buffers and booking rules.
CRM built in
Every guest becomes a contact with history, tags and AI insight.
Headless routing
Qualify and route leads from your own forms and apps.
Meeting intelligence
Send notes from any meeting; get summaries and follow-ups.
Secure by default
Hashed, scoped keys; signed webhooks; HTTPS only.
Predictable limits
120 requests a minute per key, with rate-limit headers.