Mirelo SFX2.0

Text to audio

Liveby Mirelo AI

Generates sound effects from text prompts with control over duration, negative prompts, sample count, and output audio format.

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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

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Ask in your own wordsYour agent picks the right tool and fills in the details for you.
Pay only when it worksEach use comes out of your balance. If it fails, you aren't charged.

For developersSummary, tool id, API call and input schema

Voice & audio API by Mirelo AI, callable through Superpowers. It costs $0.054 per 5s clip, charged only when the call succeeds. Call it with one API key: POST /v1/run with "tool": "fal.mirelo-ai-sfx2.0-text-to-audio", or over MCP with run_tool.

Tool id
Price per call: $0.054 / 5s clip

Call it

Also over MCP as run_tool

curl -X POST https://superpowers.tools/v1/run \
  -H 'Authorization: Bearer $SP_KEY' \
  -d '{"tool":"fal.mirelo-ai-sfx2.0-text-to-audio","input":{"prompt":""},"idempotency_key":"example-request-1"}'

Input

7 fields · 1 required

{
  "type": "object",
  "required": [
    "prompt"
  ],
  "properties": {
    "num_samples": {
      "type": "integer",
      "description": "Number of samples to generate, in one batched forward",
      "default": 2
    },
    "upload_audio_format": {
      "type": "string",
      "description": "Audio format to return",
      "default": "wav",
      "enum": [
        "wav",
        "mp3",
        "aac",
        "flac"
      ]
    },
    "prompt": {
      "type": "string",
      "description": "What the sound effect should sound like"
    },
    "seed": {
      "type": "integer",
      "description": "Seed of the first sample; -1 or unset is random"
    },
    "upload_audio_bitrate_kbps": {
      "type": "integer",
      "description": "Bitrate in kbps for an mp3 or aac upload. mp3 is written at exactly this constant rate, one of 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320. aac takes 32 to 256 as a target the encoder may undershoot on mono or sparse audio. Unset keeps the default: mp3 at LAME V0 VBR, aac at a 256 "
    },
    "negative_prompt": {
      "type": "string",
      "description": "Sounds to keep out of the result"
    },
    "duration": {
      "type": "number",
      "description": "Seconds of sound to generate, up to the deployment's text-to-SFX maximum",
      "default": 30
    }
  }
}