List voices
Complete paginated voice library per TTS provider (live provider data with a static fallback catalog). ElevenLabs voices with custom rates or credit multipliers are excluded. User-created cloned voices are returned only to credentials bound to their creator. Use a voice’s id as tts_voice on an assistant. Required scope: voices:read (keys without scope restrictions have full access).
Authorizations
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, 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.
Query Parameters
TTS provider, e.g. elevenlabs, cartesia.
ISO-639-1 language filter, e.g. de.
female, male, neutral Accent slug filter, e.g. bavarian, american, british.
Free-text search over name/accent/age.
Page size (1–200).
1 <= x <= 200Number of items to skip.
x >= 0