#ElevenLabs

Proxy requests to ElevenLabs via Replit-managed billing.

#Callback

Use externalApi__elevenlabs in code_execution.

#Allowed operations

• POST /v1/text-to-speech/:voice_id{/stream}?{/with-timestamps}? - Text to Speech (non-streaming, streaming, with-timestamps, and stream/with-timestamps variants)
• POST /v1/text-to-dialogue{/stream}?{/with-timestamps}? - Text to Dialogue (multi-voice; non-streaming, streaming, with-timestamps, and stream/with-timestamps variants)
• POST /v1/speech-to-text - Speech to Text (Scribe v1/v2)
• POST /v1/speech-to-speech/:voice_id{/stream}? - Voice Changer (speech-to-speech; non-streaming and streaming variants)
• POST /v1/sound-generation - Sound Effects (text → sound generation)
• POST /v1/audio-isolation{/stream}? - Voice Isolator (audio-isolation; non-streaming and streaming variants)
• POST /v1/forced-alignment - Forced Alignment (audio + text → word/char timings)
• POST /v1/text-to-voice/:variant(design|create-previews) - Voice Design (text → three voice previews; charged once on response.text characters). Covers /design and legacy /create-previews.
• POST /v1/text-to-voice/:voice_id/remix - Voice Remix (remix existing voice → three previews; charged once on response.text characters). Shares billing mechanics with text_to_voice_design.
• POST /v1/dubbing - Dubbing v1 — creates a dub job; bills on response expected_duration_sec × tier-per-sec (watermark vs clean)
• POST /v1/music{/:variant(detailed|stream)}? - Music composition (non-streaming binary, multipart-detailed with JSON metadata, and event-stream variants)
• POST /v1/music/video-to-music - Video to Music (multipart videos → generated music matching combined video length)
• POST /v1/music/stem-separation - Music Stem Separation (split input audio into N stems; bills on multipart input file size ÷ nominal 128 kbps — see preamble for bitrate-assumption rationale)
• GET | POST | PUT | PATCH | DELETE /:path+ - Catch-all — no charge for paths not explicitly listed (CRUD, metadata, workspace/convai management).

Authorization is handled automatically by Replit. Do not pass an Authorization header.

#Skill

#ElevenLabs quickstart

Text-to-speech, music, and audio tools through ElevenLabs passthrough billing. Replace path parameters like :voice_id with real values — never send the pattern syntax literally. Send required fields as an object in body (it is serialized for you — do not pre-stringify).

const voices = await externalApi__elevenlabs({
  path: '/v1/voices',
  method: 'GET',
})

const voiceId = voices.body.voices?.[0]?.voice_id
if (!voiceId) throw new Error('No ElevenLabs voices available')

const result = await externalApi__elevenlabs({
  path: '/v1/text-to-speech/' + voiceId + '/with-timestamps',
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: {text: 'Hello from Replit!', model_id: 'eleven_multilingual_v2'},
})

const audioBase64 = result.body.audio_base64

// File writes and imports are impure — keep them inside the
// "use impure" boundary; pass the (serializable) base64 string in.
await (async function (base64, out) {
  "use impure";
  const fs = await import('node:fs/promises')
  await fs.mkdir('attached_assets', {recursive: true})
  await fs.writeFile(out, Buffer.from(base64, 'base64'))
})(audioBase64, 'attached_assets/speech.mp3')

The /with-timestamps variant returns JSON with base64 audio, which is easiest to save from a callback.

Authorization is managed by passthrough billing. Do not set an Authorization header manually.

#Example

const result = await externalApi__elevenlabs({
  path: '/v1/text-to-speech/:voice_id{/stream}?{/with-timestamps}?',
  method: 'POST',
  query: {},
})

console.log(result.status)
console.log(result.body)