Design a voice from a description (ElevenLabs)

Liveby ElevenLabs

Generates voice previews from a description ("warm Brazilian woman in her 20s, upbeat, social media").

Returns each preview's audio_url and generated_voice_id; keep one with elevenlabs.save-voice. ElevenLabs bills the preview text's characters to your account. Needs your own ElevenLabs key (PUT /v1/credentials/elevenlabs): it changes your ElevenLabs account. Free here.

Ask your agent

Say it in your own words. Your agent picks this tool, fills in the details and brings back the answer.

Read this paragraph aloud in a warm voice and send me the audio.

Turn my blog post into an audio file I can share.

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How it works

Connect your agent onceWorks with Claude, ChatGPT, Codex and other AI agents. How to connect
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Use it for freeThis tool costs nothing. Paid tools only charge when they work.

For developersSummary, tool id, API call, input and output

Voice & audio API by ElevenLabs, callable through Superpowers. It is free with any Superpowers account. Call it with one API key: POST /v1/run with "tool": "elevenlabs.design-voice", or over MCP with run_tool.

Tool id

Call it

Also over MCP as run_tool

curl -X POST https://superpowers.tools/v1/run \
  -H 'Authorization: Bearer $SP_KEY' \
  -d '{"tool":"elevenlabs.design-voice","input":{"voice_description":""},"idempotency_key":"example-request-1"}'

Input

7 fields · 1 required

{
  "type": "object",
  "required": [
    "voice_description"
  ],
  "properties": {
    "voice_description": {
      "type": "string",
      "minLength": 20,
      "maxLength": 1000
    },
    "text": {
      "type": "string",
      "minLength": 100,
      "maxLength": 1000,
      "description": "Preview line; omit to let ElevenLabs write one"
    },
    "auto_generate_text": {
      "type": "boolean"
    },
    "model_id": {
      "type": "string",
      "enum": [
        "eleven_multilingual_ttv_v2",
        "eleven_ttv_v3"
      ]
    },
    "loudness": {
      "type": "number",
      "minimum": -1,
      "maximum": 1
    },
    "seed": {
      "type": "integer",
      "minimum": 0
    },
    "guidance_scale": {
      "type": "number",
      "minimum": 0,
      "maximum": 100
    }
  }
}