API Key Authentication. It should be included in the header of each request.
Filter by project ID
Name of the personality
Example: "Customer Service"
255Prompt of the personality
Example: "You are a friendly and helpful customer service agent who is always willing to help"
Language of the personality
af - Afrikaansar - Arabicbn - Bengalibg - Bulgarianzh - Chinese Simplifiedcs - Czechda - Danishnl - Dutchen - Englishet - Estonianfi - Finnishfr - Frenchde - Germanel - Greekgu - Gujaratihi - Hindihe - Hebrewhu - Hungarianid - Indonesianit - Italianja - Japanesekn - Kannadako - Koreanms - Malayml - Malayalammr - Marathimulti - Multilingualno - Norwegianpl - Polishpa - Punjabipt - Portuguesero - Romanianru - Russiansk - Slovakes - Spanishsv - Swedishth - Thaitr - Turkishta - Tamilte - Teluguuk - Ukrainianvi - Vietnameseaf, ar, bn, bg, zh, cs, da, nl, en, et, fi, fr, de, el, gu, hi, he, hu, id, it, ja, kn, ko, ms, ml, mr, multi, no, pl, pa, pt, ro, ru, sk, es, sv, th, tr, ta, te, uk, vi Accent of the personality
Example: "American"
255Background noise
Voice model name
Voice ID
Example: "TX3LPaxmHKxFdv7VOQHJ"
Interruption level
Speed of the voice
Generation config for Cartesia Sonic-3 voice model. Only valid when provider is "cartesia" and voice_model is "sonic-3". Supports volume and emotion Example: {"volume": 1.5, "emotion": "happy"}
Network simulation configuration for testing network impairments.
Message plan configuration for idle timeout behavior. Supports idle_timeout_seconds (positive int) and idle_message_max_spoken_count (positive int). Example: {"idle_timeout_seconds": 15, "idle_message_max_spoken_count": 2}
Wait seconds before the bot starts speaking (float >= 0). Ignored if interruption_level is also set in the same request (preset takes precedence). Example: 0.7
Stop speaking plan configuration. Controls when the bot stops speaking. Supports num_words (int >= 0), voice_seconds (float >= 0), backoff_seconds (float >= 0). Ignored if interruption_level is also set in the same request (preset takes precedence). Example: {"num_words": 3, "voice_seconds": 0.3, "backoff_seconds": 0}
Background sound volume levels (0.0 to 1.0). base sets both the base and normal volume; reduced sets the quieter level during bot speech. Example: {"base": 0.05, "reduced": 0.02}
Provider agent ID
Example: "assistant_123"
Whether the end call is enabled
Provider of the voice
11labs - Elevenlabscartesia - Cartesia11labs, cartesia