Build with the GuestlistOnline API
Programmatically manage events, guests, and check-ins. Integrate seamlessly with your existing systems.
$ curl https://api.guestlistonline.com/v1/events \
-H "Authorization: Bearer sk_live_..."
# Response
{
"data": [
{
"id": "evt_abc123",
"name": "Summer Launch Party",
"date": "2026-07-15T20:00:00Z",
"guests_count": 247,
"checked_in_count": 142
}
]
}Fast & Reliable
99.9% uptime with response times under 100ms. Our API is built for scale.
Secure by Default
TLS encryption, API key authentication, and webhook signatures keep your data safe.
Real-time Sync
Webhooks notify your systems instantly when events occur.
RESTful JSON API
Standard REST conventions with JSON payloads. Easy to integrate with any stack.
RESTful API Endpoints
Full CRUD operations for events and guests.
| Method | Endpoint | Description |
|---|---|---|
| GET | /events | List all events in your account |
| POST | /events | Create a new event |
| GET | /events/:id | Get details for a specific event |
| PUT | /events/:id | Update an event |
| DELETE | /events/:id | Delete an event |
| GET | /events/:id/guests | List guests for an event |
| POST | /events/:id/guests | Add a guest to an event |
| POST | /events/:id/checkin | Check in a guest |
| POST | /events/:id/invite | Send invitations to guests |
Generous Rate Limits
Scale from prototype to production without limits holding you back.
Free
Pro
Enterprise
Real-time Webhooks
Get instant notifications when guests RSVP, check in, or make payments. Keep your systems in sync without polling.
- Instant delivery for all events
- Cryptographic signatures for security
- Automatic retries on failure
- Event history in dashboard
Webhook Events
guest.createdguest.rsvp_confirmedguest.checked_inpayment.completedevent.capacity_reachedReady to streamline your event management?
Join thousands of organizers who trust GuestlistOnline for their events. Get started in minutes — no credit card required.