One-time setup

To use the Voice Tester, enter your Anthropic API key below. This is stored only in your browser — it's never sent anywhere except directly to Anthropic's API.

Need a key? Visit console.anthropic.com. For production hosting, use a server-side proxy instead of a browser key.

Character Voice Tester

Choose an example character and a scenario. The engine generates an in-character response in their voice. Free trial — 3 generations. Unlock the full tool →

Free generations:
3 remaining
1 — Choose an example character
2 — Choose a scenario
The engine is writing...
In-character response
⚙ GM Note
When portraying this character, lower your voice slightly and let pauses carry weight. Their tell is always looking toward exits when uncomfortable. They speak in short declarative sentences when nervous, longer ones when at ease.
Pro feature

Full GM note unlocked in the premium Voice Tester

Unlock full tool →
Commission a full backstory →

Unlock the full Character Voice Tester

Full character sheet, custom scenarios, complete GM notes with physicality & speech patterns, character library, and voice history. Available to commissioned customers.

Unlock →