generated: '2026-08-13'
method: searched
source: openapi/_original/trade-desk-data-api-swagger.json + provider docs
docs:
- https://open.thetradedesk.com/advertiser/docsApp/Foundations/resources/doc/PlatformAuthentication
- https://open.thetradedesk.com/advertiser/docsApp/Foundations/resources/doc/AuthenticationShortLive
- https://open.thetradedesk.com/advertiser/docsApp/GuidesAdvertiser/data/doc/DataApiCallsAdvertiser
summary:
  types:
  - apiKey
  - oauth2
  - openIdConnect
  - http
  api_key_in:
  - header
  api_key_names:
  - TTD-Auth
  - TtdSignature
  oauth2_flows:
  - authorizationCode
  - clientCredentials
  - deviceCode
  - password
  - implicit
  - ciba
  issuer: https://auth.thetradedesk.com
schemes:
- name: TTD-Auth
  type: apiKey
  in: header
  parameter: TTD-Auth
  primary: true
  sources:
  - openapi/_original/trade-desk-data-api-swagger.json
  - openapi/trade-desk-advertiser-api-openapi.yml
  description: Platform API token. Used by the Platform REST API, the Platform GraphQL API, the Workflows
    API, the Data API and the OAK MCP server — one token type across the whole surface.
  token_lifetime: One week to one year when generated in the OpenTTD Access Management UI; up to 24 hours
    (1440 minutes) when generated via POST /v3/authentication.
  issuance: https://open.thetradedesk.com/advertiser/access-management
  rotation: Tokens cannot be updated. To change a lifetime you revoke, generate a new token, and replace
    it in the integration. Short-lived tokens cannot be revoked at all — they expire only.
  docs: https://open.thetradedesk.com/advertiser/docsApp/Foundations/resources/doc/PlatformAuthentication
- name: ShortLivedToken
  type: http
  scheme: custom
  sources:
  - https://open.thetradedesk.com/advertiser/docsApp/Foundations/resources/doc/AuthenticationShortLive
  description: 'POST /v3/authentication with Login + Password (and optional TokenExpirationInMinutes,
    default 1440) returns {"Token": "..."} for use as the TTD-Auth header value. Maximum 24 hours. Documented
    as non-revocable and intended for temporary or low-risk use, not production.'
  endpoint: https://api.thetradedesk.com/v3/authentication
- name: OpenIDConnect
  type: openIdConnect
  sources:
  - https://auth.thetradedesk.com/.well-known/openid-configuration
  openIdConnectUrl: https://auth.thetradedesk.com/.well-known/openid-configuration
  description: Full OIDC provider fronting the platform. 92 scopes, RS256 id_token signing, PKCE (S256),
    private_key_jwt client auth, device-code and CIBA grants. This is the authorization server named by
    the MCP protected-resource metadata.
  scopes: scopes/trade-desk-scopes.yml
- name: OAuth2
  type: oauth2
  sources:
  - https://api.thetradedesk.com/.well-known/oauth-protected-resource/mcp/platform-management
  description: OAuth is offered for the OAK MCP server as the no-manual-token-management path; OIDC token
    exchange is available on request for teams building applications on top of OAK.
  flows:
  - flow: authorizationCode
    authorizationUrl: https://auth.thetradedesk.com/connect/authorize
    tokenUrl: https://auth.thetradedesk.com/connect/token
  - flow: clientCredentials
    tokenUrl: https://auth.thetradedesk.com/connect/token
- name: TtdSignature
  type: apiKey
  in: header
  parameter: TtdSignature
  deprecated: true
  sources:
  - https://open.thetradedesk.com/advertiser/docsApp/GuidesAdvertiser/data/doc/DataApiCallsAdvertiser
  description: LEGACY Data API auth. HMAC-SHA1 base64 of the JSON request body keyed with the advertiser
    secret key (audience data) or the data-provider secret key (offline conversions). The provider now
    directs all Data API traffic to token authentication.
- name: SinceraBearer
  type: http
  scheme: bearer
  sources:
  - https://open.thetradedesk.com/seller/docsApp/GuidesSeller/opensincera/doc/OpenSinceraGetStarted
  description: 'OpenSincera API uses Authorization: Bearer with a personal API key retrieved from the
    OpenSincera profile page. Separate account and separate credential from the Platform API.'
  applies_to: https://open.sincera.io/api
- name: None
  type: none
  sources:
  - https://open.thetradedesk.com/advertiser/docsApp/GuidesAdvertiser/data/doc/post-track-realtimeconversion
  description: The Real-Time Conversion Events endpoint (POST https://insight.adsrvr.org/track/realtimeconversion)
    is documented as requiring no authentication.
gaps:
- No securityScheme is declared in any published OpenAPI — the Data API spec models TTD-Auth as a required
  header PARAMETER on every operation instead of as a securityScheme, so machine clients get no auth affordance
  from the contract.
- No public scopes/permissions reference page; the 92 scopes are discoverable only from the OIDC discovery
  document.