Kokoro TTS

Generate spoken audio from text using the local Kokoro TTS engine. Use when the user asks to "say" something, requests a voice message, or wants text converted to speech.

Audits

Pass

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Install

openclaw skills install kokoro-tts

Kokoro TTS

This skill allows you to generate high-quality AI speech using a local or remote Kokoro-TTS instance.

Configuration

The skill uses the KOKORO_API_URL environment variable to locate the API.

Default: http://localhost:8880/v1/audio/speech
To Configure: Add KOKORO_API_URL=http://your-server:port/v1/audio/speech to your .env file or environment.

Usage

To generate speech, run the included Node.js script.

Command

node skills/kokoro-tts/scripts/tts.js "<text>" [voice] [speed]

text: The text to speak. Wrap in quotes.
voice: (Optional) The voice ID. Defaults to af_heart.
speed: (Optional) Speech speed (0.25 to 4.0). Defaults to 1.0.

Example

node skills/kokoro-tts/scripts/tts.js "Hello Ed, this is Theosaurus speaking." af_nova

Output

The script will output a single line starting with MEDIA: followed by the path to the generated MP3 file. OpenClaw will automatically pick this up and send it as an audio attachment.

Example Output: MEDIA: media/tts_1706745000000.mp3

Available Voices

Common choices:

af_heart (Default, Female, Warm)
af_nova (Female, Professional)
am_adam (Male, Deep)
bf_alice (British Female)

For a full list, see references/voices.md or query the API.