generated: '2026-07-11'
method: derived
source: openapi/at-and-t-in-app-messaging-api.yaml, openapi/at-and-t-sms-api.yaml
schemes:
- name: oauth2
  source: openapi/at-and-t-in-app-messaging-api.yaml
  flows:
  - flow: authorizationCode
    authorizationUrl: https://api.att.com/oauth/v4/authorize
    tokenUrl: https://api.att.com/oauth/v4/token
  description: AT&T OAuth 2.0 with user consent via authorization code flow
- name: oauth2
  source: openapi/at-and-t-sms-api.yaml
  flows:
  - flow: clientCredentials
    tokenUrl: https://api.att.com/oauth/v4/token
  description: AT&T OAuth 2.0 authentication using client credentials grant
scopes:
- scope: ADS
  description: Access to Advertising APIs
  flows:
  - clientCredentials
  sources:
  - openapi/at-and-t-sms-api.yaml
- scope: IMMN
  description: Send Message - send MMS and SMS messages on behalf of user
  flows:
  - authorizationCode
  sources:
  - openapi/at-and-t-in-app-messaging-api.yaml
- scope: MIM
  description: Message Inbox Management - read, update, and delete messages
  flows:
  - authorizationCode
  sources:
  - openapi/at-and-t-in-app-messaging-api.yaml
- scope: MMS
  description: Access to MMS messaging APIs
  flows:
  - clientCredentials
  sources:
  - openapi/at-and-t-sms-api.yaml
- scope: SMS
  description: Access to SMS messaging APIs
  flows:
  - clientCredentials
  sources:
  - openapi/at-and-t-sms-api.yaml
- scope: SPEECH
  description: Access to Speech to Text APIs
  flows:
  - clientCredentials
  sources:
  - openapi/at-and-t-sms-api.yaml
- scope: STTC
  description: Access to Speech to Text Custom APIs
  flows:
  - clientCredentials
  sources:
  - openapi/at-and-t-sms-api.yaml
- scope: TTS
  description: Access to Text to Speech APIs
  flows:
  - clientCredentials
  sources:
  - openapi/at-and-t-sms-api.yaml