Text-to-speech API
From $6 per 1M characters — the most natural-sounding text-to-speech API. Build voice experiences with sub-300ms latency, 30+ languages, and 1,500+ voices.
curl -X POST https://api.speechify.ai/v1/audio/speech \
-H "Authorization: Bearer $SPEECHIFY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"input": "Hello, world!",
"voice_id": "george",
"audio_format": "mp3"
}'Built for developers
Customizability
Fine-tune every aspect of voice output — speed, pitch, emotion, pauses, and pronunciation — for results that match your exact needs.
Easy Migration
Drop-in compatible with existing TTS APIs. Switch to Speechify with minimal code changes and immediate quality improvements.
Emotional Control
Go beyond flat narration. Our models understand context and deliver speech with natural emotion — happy, sad, excited, calm, and more.
1,500+ voices
Choose from a vast library of pre-built voices across accents, ages, and styles — or clone your own voice in seconds.
Need custom volume or on-premise deployment?
We offer dedicated infrastructure, custom model training, and enterprise-grade security for teams at scale.
Use cases
Conversational AI
Power chatbots, virtual assistants, and AI agents with voices that sound human. Sub-300ms latency for real-time conversations.
Voiceovers & Content
Create professional voiceovers for videos, podcasts, and marketing content at scale — without booking a studio.
AI Narration
Transform articles, books, and documents into lifelike audio. The same technology behind the Speechify app, now in your product.
How we compare
Honest, side-by-side comparisons against the other text-to-speech APIs.