Developer Platform

A private API for integration partners

BestGuest is building an API so PMSs, channel managers, and booking engines can offer Czech guest-registration compliance directly inside their own product.

The BestGuest API is currently private and available to selected partners under agreement. It is not open for public self-service access.

Why integrate with BestGuest

Your Czech customers need guest registration, UbyPort reporting, e-Turista readiness, and local accommodation fee compliance. BestGuest handles it — your platform can offer it as a built-in feature instead of sending customers elsewhere.

Developer Platform

Capabilities

The scope we're building toward with partners. Availability and final shape depend on the partnership agreement.

📅

Reservation API

Push bookings into BestGuest so guest registration starts automatically.

✅

Check-in API

Trigger and track online guest check-in without leaving your product.

🛡️

Compliance API

Read back registration status, house book entries, and fee calculations.

🏛️

UbyPort Reporting

Foreign-guest reports filed with Czech authorities on your customers' behalf.

🔔

Webhooks

Real-time events for registration completion, fee reports, and reservation changes.

🧪

Sandbox

A partner test environment for building and validating an integration before go-live.

📦

SDKs

Client libraries planned to speed up integration for common partner stacks.

🔒

Security & Data Residency

GDPR-aligned handling of guest data, hosted in the EU.

Illustrative example

POST /v1/checkins
Authorization: Bearer {partner_api_key}
Content-Type: application/json

{
  "reservationId": "res_8f3a2b",
  "listingId": "lst_4c91d0",
  "guest": {
    "email": "guest@example.com",
    "checkIn": "2026-08-14",
    "checkOut": "2026-08-18"
  }
}

→ 201 Created
{
  "checkinId": "chk_1a2b3c",
  "status": "pending_guest_registration",
  "registrationUrl": "https://app.bestguestapp.com/l/lst_4c91d0"
}

Illustrative example only — final schema may differ. Access is available only under a partnership agreement.

Request API access

Tell us about your platform and we'll get back to you about a partnership.