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GET
List Speech To Speech Voices
Read only
Recommended. This endpoint is part of the public /v1 API reference and is the supported path for new integrations. See the migration guide for versioning guidance.
Returns Speech to Speech voices with the languages and realtime LLM paths each voice supports. Use this endpoint when building a Speech to Speech voice selector or validating an agent configuration before saving it.

When to use this

  • Building S2S agents: agents with pipeline_type: "Speech_To_Speech" can only use voices from this list, not the general List Voices catalog.
  • Voice selectors: populate the voice dropdown in your own tooling when the operator has chosen the Speech to Speech pipeline.
  • Pre-save validation: confirm the voice, language, and realtime LLM combination is supported before creating or publishing the agent.
The response wraps the records in a voices array and returns the full list without pagination metadata.

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Response

Speech to speech voices returned successfully.

voices
object[]
required