The Guest Manager REST API lets you read and manage attendees, tickets, orders, events, and campaigns — for pulling data into CRMs, BI tools, and automation platforms like Make or Zapier. Full reference docs are at https://api.guestmanager.com. The API is available on every plan — no upgrade required.
Authentication
Pass your API token in the Authorization header. Both Token and Bearer prefixes work:
Authorization: Token <your_api_token>
Key endpoints
| Endpoint | Use |
|---|---|
GET /api/public/v2/tickets |
Attendee list, check-in status, custom field responses |
GET /api/public/v2/orders |
Orders, with the same filtering as tickets |
GET /api/public/v2/events?include=campaigns |
Events with associated campaign IDs |
PATCH /api/public/v2/campaigns/{id} |
Update a campaign’s email template |
See the full reference for the complete endpoint catalog, including event creation and registration-type writes.
Filtering
Filter tickets by event:
filter[event_ids]=1234
Freeform search (name, email, barcode) — works on /tickets and /orders:
filter[search]=email@example.com
Pull the Shopify order number from a ticket — pass both include directives, comma-separated:
?include=line_item,line_item.order
The Shopify order number is then at line_item.order.number.
Pagination
The API uses cursor-based pagination. Pass page[cursor] (start with an empty cursor) and an optional page[size] (default 10):
?page[cursor]=&page[size]=50
Each response carries the next cursor and a ready-to-use link in meta:
"meta": {
"page": { "size": 50, "next_cursor": "<token>", "last": false },
"links": { "next": "https://api.guestmanager.com/api/public/v2/tickets?page[cursor]=<token>&page[size]=50" }
}
Follow meta.links.next (or pass next_cursor back as page[cursor]) to fetch the next page. When meta.page.last is true, you’ve reached the end.
Prices
registration_type.price is returned in dollars (the major currency unit), not cents.
Common errors
401 — Access Denied: Check that your Authorization header carries a valid token (Token <value> or Bearer <value>) for the correct account.
422 — duplicate barcode: Barcodes must be unique. The uniqueness scope (per-event vs. account-wide) is configurable at Settings → Company.
400 — invalid page parameter: Pass page in bracketed form (e.g. page[cursor]), not a flat ?page=2.
FAQ
Where is the barcode/QR code data?
Barcodes are not stored in Shopify metafields. Read them from GET /api/public/v2/tickets, or export from Guest Manager: Events → your event → Manage in backend → Attendees → Export to CSV.
How do I update a campaign’s email template via API?
First call GET /api/public/v2/events?include=campaigns to retrieve campaign IDs, then PATCH /api/public/v2/campaigns/{id} with {"campaign": {"email_template_id": <id>}}.
How do I get a total attendee count? Cursor pagination doesn’t return a grand total. For an exact count, open the Attendees list in the Guest Manager backend (Events → your event → Manage in backend → Attendees), where the count is shown and you can export the full list to CSV.
Is a white-label or enterprise API available? No — that offering is no longer available. </content>
