For devs already building voice AI

The sales voice you need on your voice AI stack.

You've built the agent. The LLM reasons, the tools fire, the pipeline works — but the voice loses the deal. One proven voice, tested on thousands of live sales and support calls, drops straight into the stack you already have. No new platform. No migration. Just the voice.

Get API access See how it fits

Works with your existing ElevenLabs-compatible pipeline · REST + WebSocket · 75ms first-byte

How it fits

Three lines between your LLM and the phone

Your orchestrator decides what to say. We handle how it sounds — streaming straight into your existing call infrastructure.

Point your TTS at us

Swap one base URL. Your ElevenLabs-shaped calls keep working — same params, same streaming.

Keep your whole stack

Your LLM, your agent framework, your telephony, your CRM. We only replace the part that talks.

Hear the difference

A voice proven on live outbound sales and support calls — the kind people stay on the line for.

Integration

Drop-in in under a minute

If your code calls a TTS endpoint today, this is the whole change:

# Before
POST https://api.elevenlabs.io/v1/text-to-speech/{voice_id}

# After — same body, same streaming, new voice
POST https://api.voice4yourstack.com/v1/tts/{voice_id}
Authorization: Bearer v4ys_live_xxxxxxxx

The voice

Hear it. Then talk to it.

Two recordings of the same voice doing the jobs you'd hire it for — then scroll down and speak with it live.

SALES CALL

Cold outreach that lands

SUPPORT CALL

Customer service that calms

YOUR TURN

Prefer to read it first?

Transcripts are in the live demo below — hit the mic and talk to the voice yourself.

Talk to the voice

Live demo

Talk to the voice — right now

Mic on, say anything. Sell to it, ask it for support, or just say hi. Eight exchanges per visitor.

Transcripts appear here. Your mic stays off until you press the button.

Tap to speak — the voice replies out loud.

Hosted on ElevenLabs

Grab the voice straight from the source

No lock-in theatre: the voice lives on ElevenLabs and you can use it from there directly, or through our drop-in endpoint. Here's the ID — copy it into your ElevenLabs account and it's yours to test.

VOICE ID

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Open in ElevenLabs

Voice ID works with the ElevenLabs API directly — model eleven_turbo_v2_5 recommended. Using our endpoint adds call-tested settings, streaming, and usage pricing without an ElevenLabs subscription.