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POST
Set audio first message

Authorizations

Authorization
string
header
required

API key (fam_..., created under Settings → API Keys) or an OAuth 2.0 access token (fam_at_...). Keys can be restricted to scopes such as assistants:read, calls:write, campaigns:write, automations:read, dashboards:read, dashboards:write, leads:write, segments:write, loop:read, loop:write, phone_numbers:write, sip_trunks:write, knowledge:write, voices:read, billing:read, settings:write, platform:read, platform:write; a *:write scope implies the matching *:read. Automation and dashboard endpoints also accept the legacy calls:* scope. Keys without scope restrictions have full access.

Path Parameters

id
string
required

Assistant id.

Body

url
string<uri>
required

Public http(s) URL of the audio file to download.

Response

Audio greeting stored.

assistant
object

A voice assistant configuration. Nullable model overrides are independent per engine: pipeline uses llm_*, realtime uses realtime_*, and half-cascade uses half_cascade_* for its text-capable realtime input plus tts_* for output.

greeting_audio_url
string | null

Short-lived signed playback URL (1 h).