Your interface.
Our engine.
Keep the front end you've already built — your app, your site, your kiosk, your brand — and power it with HolidayHero's guest-experience backend. Stays, guidebooks, upsells and the AI Concierge, all over a single GraphQL API.
What is headless?
Front end and backend, cleanly separated.
"Headless" means the guest-facing interface is decoupled from the engine that powers it. You own and design the experience; HolidayHero handles the heavy backend — guest data, content, payments and AI — and serves it through an API.
No backend to build or maintain, no inconsistent branding, and the freedom to ship and adapt fast.
The API
One API for the whole stay.
Pick an operation to see what comes back.
One typed endpoint — ask for exactly the fields you need, no over-fetching or version churn. Token-authenticated, scoped per property.
{
"data": {
"stay": {
"id": "9F3K2",
"guest": "Sophie Bergmann",
"language": "es",
"property": "Villa Maritiem",
"status": "in_stay"
}
}
}Build with
Everything you need to ship.
One typed, documented endpoint — query exactly the fields you need across stays, guests, content and commerce.
Real-time events — check-in completed, order placed, message received — over GraphQL subscriptions or webhooks.
Drop-in guest-app modules and an SDK, themed to your brand — when you don't want to build from scratch.
Send a guest message, get a sourced answer back — grounded in the guidebook, in any language.
Guidebooks and upsells come back auto-translated — request any locale on the fly.
Scoped API keys, token auth, EU-hosted and GDPR-ready out of the box.
Integration levels
Pick how deep you go.
Start hosted and move toward fully headless whenever you're ready — the data model stays the same.
Go live on the HolidayHero guest app. No engineering — set up properties and launch.
Drop our components and SDK into your own app — keep your UI, we handle the modules.
Build entirely on our backend over the API. Total control, real-time sync, your stack.
Connect to the systems you already run — no rip-and-replace.
Own the experience end to end and adapt it whenever you need.
Skip the backend build and launch in a fraction of the time.
No infrastructure to build, host or maintain — we carry it.
Start building
Get your sandbox keys.
Read the reference, grab a test key and make your first call in minutes. Talk to us when you're ready for production.
Build the experience. We'll run the stay.
Plug HolidayHero's guest-experience engine into your own software — and ship faster, with less to maintain.