New: every message picks a fast or a slow model

Fish Audio

Fish Audio provides speech synthesis, transcription, voice cloning, and conversational voice-agent APIs.

What agents can do

Actions10

  • Configure agent

    Partially update an agent's draft prompt, voice, and core conversation behavior without publishing it.

  • Create agent

    Create a private Fish Audio agent, optionally with an initial prompt, voice, and core conversation settings.

  • Delete agent

    Permanently delete a Fish Audio agent by ID; use only when deletion is explicitly intended.

  • Get account balance

    Return the connected Fish Audio account's package allowance and API credit so an agent can distinguish free quota from paid credit.

  • Get agent

    Return an agent's workspace metadata together with its current draft conversation configuration.

  • Get voice model

    Get a Fish Audio voice model by ID and inspect whether it is trained and suitable for synthesis.

  • List agents

    Search agents in the connected Fish Audio workspace, including draft or archived agents when requested.

  • List agent sessions

    List conversation sessions for the workspace or a specific agent, filtered by lifecycle status, caller, or creation time.

2 more
  • List voice models

    Search public or workspace-owned Fish Audio voice models.

  • Synthesize speech

    Generate downloadable speech with Fish Audio's free S2.1 model using one or more discovered voice model IDs.

How it connects

You paste an API key from Fish Audio on a page Composio hosts, so the key never passes through Definable.

Keep the connection to yourself or share it with your workspace. Any action that writes or sends can wait for your approval.