# FlixBus

**Canonical:** https://apis.io/providers/flixbus/  
**Website:** https://global.flixbus.com/  
**APIs profiled:** 2

FlixBus is the long-distance coach brand of Flix SE (formerly FlixMobility), a Munich-headquartered mobility provider that also operates FlixTrain in Europe and Greyhound in North America. Flix runs an asset-light model: it owns the brand, network planning, pricing, distribution and technology while regional bus partners operate the vehicles. Its technology surface is split in two. A partner-facing Flix API is published through the Flix Developer Portal at developer.api.flixbus.com — a Redocly-based catalogue of API references, getting-started guides, changelogs and downloadable Postman collections — but the portal is gated behind Microsoft Entra ID (Azure AD) sign-in and the underlying gateway at global.api.flixbus.com rejects anonymous requests, so no machine-readable OpenAPI is reachable without a distribution-partner agreement (requested via online-distribution@flixbus.com). Publicly and anonymously, Flix does publish schedule data as first-party GTFS Schedule feeds for Europe, the United States and Great Britain from gtfs.gis.flix.tech, refreshed regularly and licensed ODbL-1.0 through national open-data portals.

## Kin Score — 30.8 / 100 (thin)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 30.8).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 0.0 |
| Governance | 12.5 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 34.8 |
| Commercial Clarity | 34.2 |

Regulatory layer — **Government & Public Sector**: 57.4 (matched via tags).

## Agent readiness — 15.3 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (2)

- **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...
- **Flix GTFS Schedule Feeds** — First-party GTFS Schedule feeds published by FlixMobility Tech GmbH covering the FlixBus and FlixTrain networks. Three anonymous, unauthenticated regional archives are served fr...

## Security (3)

- **Flixbus Authentication** — oauth2 · 1 scheme
- **Flixbus Domain Security** — TLSv1.3 · DMARC
- **Flixbus Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Tags

Company, Transportation, Travel, Mobility, Bus, Rail, Ticketing, GTFS, Open Data, Distribution

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/flixbus/). Scores are computed from the provider's own public artifacts under a published rubric.