Where it fits
Speech synthesis
This adapter uses ElevenLabs speech synthesis; it is not an import of an ElevenLabs Agents workspace. Voice permissions and provider charges remain with your account.
Configure the connection
Copy an accessible voice ID from your ElevenLabs account into tts_voice. Select the language model and transcription provider separately.
Assistant configuration fragment. Merge this into your assistant; select current model and voice IDs from your account before saving.
{
"pipeline_mode": "cascading",
"tts_provider": "elevenlabs",
"tts_voice": "YOUR_ELEVENLABS_VOICE_ID"
}Keep provider secrets in workspace credentials. The public MCP provider matrix describes capabilities; it does not connect your provider account.
Test this boundary first
Test short acknowledgments and longer answers. Listen for pronunciation, first-audio delay and clean interruption when the caller speaks.
Save a known working configuration and move one test route first. Inspect the call log before increasing traffic. Follow the staged migration guide.
Understand the bill
APIFleet adds $0.03 per connected AI minute, billed per second. Provider and carrier usage are additional. With your own keys, provider charges go directly to the provider. No monthly subscription or free call credits; prepaid top-ups start at $10.