generated: '2026-07-18'
method: searched
source: >-
  https://apptimize.com/docs/apis/rest-api.html and
  openapi/apptimize-rest-api-openapi.yml
authentication:
  style: api-key-header
  header: ApptimizeApiToken
  ref: authentication/apptimize-authentication.yml
  notes: >-
    Single API Token in the ApptimizeApiToken header. The SDKs instead use an
    App Key at initialization.
regions:
  style: host-based
  hosts:
    - region: North America
      base: https://api.apptimize.com
    - region: Europe
      base: https://api.apptimize.eu
context_headers:
  description: >-
    Optional headers supply application/device context used for experiment
    targeting and reporting.
  headers:
    - ApptimizeApplicationName
    - ApptimizeApplicationVersion
    - ApptimizeOperatingSystem
    - ApptimizeOperatingSystemVersion
    - ApptimizePilotTargetingId
custom_attributes:
  description: >-
    Custom user attributes for targeting are passed as JSON. On GET requests
    they are sent as query parameters; on the event POST they are sent as form
    fields.
idempotency:
  supported: false
  notes: >-
    No idempotency-key header or contract is documented. Experiment-assignment
    GETs are naturally read-only/repeatable; the event POST is an at-least-once
    tracking call with no dedup key.
pagination:
  supported: false
  notes: All endpoints are per-user single-resource lookups; no list pagination.
versioning:
  style: uri-path
  current: v1
  ref: lifecycle/apptimize-lifecycle.yml
error_envelope:
  format: json
  content_type: application/json
  shape: '{ "message": "..." }'
  ref: errors/apptimize-problem-types.yml
  notes: >-
    A 400 Bad Request is returned for invalid dynamic-variable types or
    incorrectly typed defaults. Not RFC 9457 problem+json.
success_semantics:
  event_track: 204 No Content on a successful event POST
rate_limits:
  documented: false
  notes: No published rate-limit policy or rate-limit response headers.