Customer.io · Authentication Profile

Customer Io Authentication

Authentication

Customer.io secures its APIs with http across 2 declared security schemes, as derived from its OpenAPI definitions.

Behavioral DataBroadcastsCampaignsCDPCustomer DataCustomer Data PlatformData IngestionEmailEvent TrackingMarketing AutomationMessagingPush NotificationsSegmentsSMSTransactional Email
Methods: http Schemes: 2 OAuth flows: API key in:

Security Schemes

bearerAuth http
scheme: bearer
basicAuth http
scheme: basic

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/customer-io-app-api-openapi.yml, openapi/customer-io-pipelines-api-openapi.yml,
  openapi/customer-io-track-api-openapi.yml
summary:
  types:
  - http
schemes:
- name: bearerAuth
  type: http
  scheme: bearer
  description: Bearer token authentication using your App API key. Pass the key in the Authorization
    header as Bearer {app_api_key}.
  sources:
  - openapi/customer-io-app-api-openapi.yml
- name: basicAuth
  type: http
  scheme: basic
  description: Basic authentication using your CDP API key as the username with a blank password.
  sources:
  - openapi/customer-io-pipelines-api-openapi.yml
  - openapi/customer-io-track-api-openapi.yml