Fixie · Authentication Profile

Fixie Authentication

Authentication

Fixie secures its APIs with apiKey across 1 declared security scheme, as derived from its OpenAPI definitions.

CompanyVoice AIConversational AIReal-timeSpeechAgentsTelephonyMachine LearningSIPWebhooks
Methods: apiKey Schemes: 1 OAuth flows: API key in: header

Security Schemes

apiKeyAuth apiKey
· in: header (X-API-Key)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-19'
method: searched
source: openapi/fixie-ultravox-openapi-original.yml
docs: https://docs.ultravox.ai/gettingstarted/quickstart/api-key
summary:
  types:
  - apiKey
  api_key_in:
  - header
  notes: >-
    Single auth model — a 41-character API key (8 chars + '.' + 32 chars) sent
    in the X-API-Key request header. No OAuth or OIDC; there is no scope surface.
schemes:
- name: apiKeyAuth
  type: apiKey
  in: header
  parameter: X-API-Key
  description: API key
  sources:
  - openapi/fixie-ultravox-openapi-original.yml