fish.audio TTS

Requires FISH_AUDIO_API_KEY in .env (create one at https://fish.audio/go-api/api-keys/). Create voice models in the fish.audio playground and pass their id as reference_id to reuse a cloned voice.

Current API

Single synchronous call returning raw audio bytes:

POST https://api.fish.audio/v1/tts
Authorization: Bearer ${FISH_AUDIO_API_KEY}
Content-Type: application/json
model: <backend model>     # HTTP header selects the backend, e.g. s1

The backend model is chosen with the model HTTP header, not a body field. In OpenMontage this maps to the tool's model input.

Backend models