aid: 4screen
name: 4.screen
description: >-
  4.screen GmbH (Munich, Germany) operates the Driver Interaction Platform — a
  two-sided in-car marketplace connecting businesses with drivers in real time
  through the vehicle's built-in navigation and infotainment screen. Its
  Mobility Experience Cloud (MXC) connects by API to automaker vehicle backends,
  and brands buy four placement formats through it: Branded Pins (a logo on the
  in-car map at a business location), Sponsored Search (paid ranking in in-car
  navigation results), Recommendations (context-aware offers driven by vehicle
  signals) and Detail Screen (an interactive promotion with engagement
  tracking). OEM partners include Audi, Volkswagen, Skoda, Nissan, Hyundai, Kia
  and the Stellantis brands; advertisers include McDonald's, Shell, KFC,
  Waitrose, Kaufland and Coop. The API is real and central to the product, but
  entirely gated: api.4screen.com answers HTTP 401 on every path, and there is
  no public developer portal, reference or specification.
image: https://4screen.com/wp-content/uploads/2024/06/4screen_logo.svg
url: https://raw.githubusercontent.com/api-evangelist/4screen/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-09-05'
modified: '2026-09-05'
tags:
- Company
- Advertising
- AdTech
- Automotive
- Mobility
- Connected Vehicles
- In-Car Commerce
- Location
- Navigation
- Marketing
- Germany
tags_raw:
- Company
- Advertising
- AdTech
- Automotive
- Mobility
- Connected Vehicle
- In-Car Commerce
- Location
- Navigation
- Marketing
- Germany
apis:
- aid: 4screen:mobility-experience-cloud
  name: 4.screen Mobility Experience Cloud API
  description: >-
    The production 4.screen API. Automakers and mobility service providers
    integrate it into infotainment and navigation systems to render 4.screen
    content in the vehicle, and the 4.screen customer portal calls the same host
    for campaign management. The surface is OAuth 2.0 / OpenID Connect protected
    by a self-hosted Keycloak realm mounted at /auth on the same host, and a
    GraphQL endpoint is referenced by the portal application at /graphql. No
    OpenAPI, GraphQL SDL or public reference is published — every anonymous
    request to api.4screen.com returns HTTP 401 AUTHENTICATION_FAILED.
  humanURL: https://4screen.com/4-automotives/
  image: https://4screen.com/wp-content/uploads/2024/06/4screen_logo.svg
  baseURL: https://api.4screen.com
  tags:
  - Advertising
  - Automotive
  - Mobility
  - Navigation
  - In-Car Commerce
  properties:
  - type: Authentication
    url: authentication/4screen-authentication.yml
  - type: OAuthScopes
    url: scopes/4screen-scopes.yml
  - type: OpenIDConnect
    url: well-known/4screen-openid-configuration.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: VulnerabilityDisclosure
  url: security/4screen-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/4screen-domain-security.yml
- type: Website
  url: https://4screen.com/
- type: Documentation
  url: https://4screen.com/faqs/
- type: Support
  url: https://4screen.com/contact-us/
- type: Blog
  url: https://4screen.com/news/
- type: GitHubOrganization
  url: https://github.com/4screen
- type: SignUp
  url: https://portal.4screen.com/
- type: PrivacyPolicy
  url: https://4screen.com/privacy-policy/
- type: TermsOfService
  url: https://4screen.com/advertising-conditions-europe/
- type: LinkedIn
  url: https://www.linkedin.com/company/4screen/
- type: CaseStudies
  url: https://4screen.com/case-studies/
- type: Authentication
  url: authentication/4screen-authentication.yml
- type: OAuthScopes
  url: scopes/4screen-scopes.yml
- type: WellKnown
  url: well-known/4screen-well-known.yml
- type: SecurityTxt
  url: well-known/4screen-security.txt
- type: Conformance
  url: conformance/4screen-conformance.yml
- type: Lifecycle
  url: lifecycle/4screen-lifecycle.yml
- type: Conventions
  url: conventions/4screen-conventions.yml
- type: LLMsTxt
  url: llms/4screen-llms.txt
- type: Plans
  url: plans/4screen-plans-pricing.yml
- type: RateLimits
  url: rate-limits/4screen-rate-limits.yml
- type: Security
  url: security/4screen-vulnerability-disclosure.yml
- type: ErrorCatalog
  url: errors/4screen-problem-types.yml
x-enrichment:
  date: '2026-09-05'
  status: enriched
  artifacts_added: 19
  pass: local-v3
x-coverage:
  state: gated
  reason: sales-gate
  detail: >-
    4.screen's API is real and central to the product — its own FAQ says
    automakers "can implement the 4screen API into their infotainment systems
    ... easily within days" — but api.4screen.com answers HTTP 401
    AUTHENTICATION_FAILED on every path including /openapi.json, /v3/api-docs
    and /graphql, docs.4screen.com and developer.4screen.com do not resolve in
    DNS, and both the OEM page and the advertiser page replace a reference with
    a "Book an OEM Partnership Meeting" form. The only machine-readable contract
    4.screen publishes anonymously is its Keycloak OIDC/OAuth discovery document.
  evidence:
    - url: https://api.4screen.com/v3/api-docs
      status: 401
    - url: https://api.4screen.com/openapi.json
      status: 401
    - url: https://api.4screen.com/graphql
      status: 401
    - url: https://4screen.com/4-automotives/
      status: 200
    - url: https://api.4screen.com/auth/realms/fourscreen/.well-known/openid-configuration
      status: 200
  checked: '2026-09-05'