1. Create an Account
Sign up at nineninesix.ai/signup. A default organization and project are created for you automatically.2. Generate an API Key
- Go to API Keys in your dashboard
- Click Create API Key
- Copy the key — it starts with
sk_996_and is only shown once
3. Add Credits
The API is pay-as-you-go. Head to Billing and top up (minimum 5 buys 1,000,000 characters). 1 credit = 1 character of input.4. Make Your First Request
5. Find a Voice
List available voices withGET /voices, or browse them in the Playground. Use a voice’s id in the voice field.
Next Steps
- Explore the TTS Playground in your dashboard
- Read the full API Reference
- Stream in real time with the WebSocket Streaming endpoint