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Voice.ai combines state-of-the-art text-to-speech models with powerful voice agent capabilities, enabling you to build everything from conversational AI assistants to automated call centers.

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Quick Start

Text-to-Speech Quickstart

Generate speech from text in minutes

Voice Agents Quickstart

Create and deploy your first voice agent

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Text-to-Speech

Generate ultra-realistic speech from text with our advanced TTS models. Clone custom voices from audio samples in seconds, control pronunciation and emotion, and stream audio in real-time for seamless conversational experiences. Key Features:
  • Instant voice cloning - Create custom voices from audio samples in seconds
  • Real-time streaming - Low-latency audio generation for conversational AI
  • Multiple formats - Support for MP3, WAV, and PCM audio formats
  • Fine-grained control - Adjust temperature and top-p model parameters
  • Production-ready - Built for scale with high availability and reliability
Perfect for voice assistants, content creation, accessibility applications, and real-time voice interactions. Get started with TTS →

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Voice Agents

Build intelligent voice agents that can handle phone calls, answer questions, and interact with users naturally. Deploy agents with phone numbers, configure behavior with prompts and knowledge bases, and monitor performance with comprehensive analytics. Key Features:
  • Phone number integration - Purchase and assign phone numbers directly through the API
  • RAG-powered knowledge bases - Connect agents to your data for accurate, context-aware responses
  • Real-time conversation handling - Natural interruptions, turn-taking, and conversation flow
  • Comprehensive analytics - Track call history, performance metrics, and agent behavior
  • Customizable behavior - Fine-tune prompts, greetings, and agent personality
Ideal for customer support, sales automation, appointment scheduling, and interactive voice applications. Get started with Agents →

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Auto Evals

Alpha Simulate agent conversations and automatically generate evaluations that optimize your agent prompts. Test different configurations, measure performance across scenarios, and let AI automatically refine your prompts for better results. Learn more about Auto Evals →

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Support

Dashboard

Access your dashboard to manage API keys, view usage, and monitor your applications.

API Reference

Explore the complete API reference for detailed endpoint documentation and examples.