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Prerequisites

Sign up for a free Fish Audio account to get started with our API.
  1. Sign up on fish.audio
  2. Fill in your details to create an account, complete steps to verify your account.
  3. Log in to your account and open Get Started
Once you have an account, you’ll need an API key to authenticate your requests.
  1. Log in and open Get Started
  2. Click “Get your API key”: the key is created in one click and shown only once
  3. Copy your key and store it securely
Keep your API key secret! Never commit it to version control or share it publicly.

Recipe

Pass a ReferenceAudio (raw audio bytes + an exact transcript) on the convert call. Nothing is saved server-side; the clone applies to that request only. Install the Python SDK first: pip install fish-audio-sdk.
Use 10–30 s of clean speech, and make text match the audio exactly (including punctuation) for the best prosody.

Reuse a voice across many requests

If you’ll use the voice repeatedly, create a persistent model once and pass its id as reference_id. See the Voice Cloning guide.