generated: '2026-07-12'
method: documented
source: https://docs.sequencehq.com/reference/authentication
summary:
  types:
  - http
schemes:
- name: basicAuth
  type: http
  scheme: basic
  description: >-
    HTTP Basic authentication. When you create an API client in the Sequence
    Dashboard you receive a Client ID and a Client Secret. The Client ID is used
    as the Basic auth username and the Client Secret as the password, sent as
    `Authorization: Basic base64(clientId:clientSecret)`. The Client Secret is
    shown only once and cannot be retrieved later. Requests also accept a
    `sequence-version` header to pin the date-based API version (for example
    2024-07-30). Two environments are available - Production and Sandbox - each
    with its own credentials.
  sources:
  - https://docs.sequencehq.com/reference/authentication
  - https://docs.sequencehq.com/reference/gettingStarted