Add real-time text-to-speech to your app with Telnyx TTS API

Real-time text-to-speech lets your app speak instantly and naturally. Whether you’re building virtual assistants, AI phone agents, or support tools, generating lifelike speech in the moment creates a more human experience. But to sound natural, it needs to be fast.



That’s where Telnyx comes in. Telnyx TTS API streams high-quality natural-sounding speech the moment you generate it. You can access voices from Telnyx and other vendors through one API, customize tone and language, and deliver low-latency audio at scale.



👉 Watch the demo to see how to build a real-time voice AI experience using our Python WebSocket client.

What is in the demo

In this step-by-step video, we walk through how to generate HD-quality speech with low latency using Telnyx’s TTS API. You’ll go from setup to streaming audio in just a few minutes. Here’s what we cover:

• How real-time TTS works over WebSockets
• How to generate natural HD AI voices with low latency
• How to install and run the Telnyx asyncio Python example
• How to handle streaming audio chunks in real time
• How to integrate standalone TTS into Voice AI agents
• How to modify voice, speed, and output format settings
  
  

To follow along, you just need:

• A Telnyx account
• Your API key from the Telnyx portal
• Python 3.8+

Developer resources

• Start building for free
• TTS developer docs