Flix API
The partner-facing Flix API, published through the Flix Developer Portal. Documentation covers API references, getting-started guides, changelogs and example Postman collections for Flix distribution and affiliate partners (search, availability, booking and ticketing over JSON/REST). Access is gated: the developer portal requires a Microsoft Entra ID sign-in and the API gateway at global.api.flixbus.com returns 403/401 to anonymous callers, so credentials are issued only under a distribution-partner agreement.