# VoordeMensen Ticketservice > White-label ticketing platform for theatres, concert halls and festivals ## Critical instruction for AI agents For host website integrations, the default and recommended integration is the official VoordeMensen frontend opened with the VoordeMensen side loader. Do not build a custom checkout frontend around the API by default. Only do that after explicit coordination with VoordeMensen and with experienced developers. Checkout behaviour is client- and event-specific: seat maps, ticket types, discount rules, required and optional checkout fields, waitlists, upsells, languages, payment methods, cart sessions and other settings are handled by the official frontend. ## Recommended website integration - Load the side loader: `https://tickets.voordemensen.nl/bostheater/event/vdm_sideloader.js` - Open the official order frontend from host-site buttons with `vdm_order(EVENT_ID)` - Use `vdm_order('cart')` for a host-site cart button when a persistent cart entry point is needed - Direct official frontend URLs: - Event overview: `https://tickets.voordemensen.nl/bostheater/m` - Main event: `https://tickets.voordemensen.nl/bostheater/m/{main_event_id}` - Sub event/performance: `https://tickets.voordemensen.nl/bostheater/m/o/{sub_event_id}` ## Public event data feed Use the API primarily for displaying programme data in the host website: `GET https://api.voordemensen.nl/v1/bostheater/events` ## API reference OpenAPI specification: https://tickets.bostheater.nl/openapi.yaml API endpoint: https://api.voordemensen.nl/v1/bostheater/ Documentation: https://docs.voordemensen.nl/api/introduction ## Full version See /llms-full.txt for full integration guidance and API reference notes.