Imagine giving your chatbot or web app the ability to talk – no mics, no actors – just crisp, clear audio generated from text. LMNT provides a text-to-speech (TTS) API and high-quality voices to make your app smoother and more engaging with human-like intonation and delivery.

You can also stream text to our servers and receive synthesized audio in real-time for your users at low latency (<300ms) with our WebSocket API.

Give each bot, character, or app a personality with a unique voice. We support a wide library of voices and the ability to instantly clone your own from 30 secs of audio (or more for a professional clone).

Try it at app.lmnt.com.

This integration will set up your Vercel project(s) with an LMNT API key for your application to begin accessing our text-to-speech via REST or WebSockets APIs. You can also install our Node or Python SDKs:

• Python docs | pip install -U lmnt
• Node docs | npm install lmnt-node

A typical request involves choosing a voice, sending text, and then receiving audio to use in your application.

After you have completed the integration setup, you’ll see an environment variable named LMNT_API_KEY in your project's settings page.

For more information, visit our Vercel LMNT integration docs.

For instant help or questions, ping us on Discord or support@lmnt.com. We’re adding more languages as well – get in touch for early access and to request a specific language.