Speech & music

Three audio endpoints: Whisper for transcription, Piper for text to speech, and MiniMax Music 3 for full music tracks. Launch pricing: transcription €0.005 / minute, speech €2.95 / 1M characters, music €0.09 / track.

Speech to text

POST /v1/audio/transcriptions — model whisper. A multipart file upload, not JSON:

curl

$ curl https://api.axforge.ai/v1/audio/transcriptions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -F file=@meeting.wav \
  -F model=whisper

{"text": "Let's move the review to Tuesday morning."}

Text to speech

POST /v1/audio/speech — model piper. Send the text, receive the spoken audio as the response body:

curl

$ curl https://api.axforge.ai/v1/audio/speech \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "piper", "input": "Your order has shipped."}' \
  --output speech.wav

Music generation

POST /v1/audio/music — MiniMax Music 3, model name minimax-music3. Describe the music in prompt; optionally structure lyrics with [verse] and [chorus] tags, or omit lyrics entirely for an instrumental track.

Parameter	Meaning
prompt	A musical description: genre, mood, tempo, instrumentation
lyrics	Optional. Lyrics with `[verse]` / `[chorus]` tags. Omit for instrumental.
duration_s	Track length in seconds, up to 300
seed	Optional. Same seed + same inputs reproduces the track.

curl

$ curl --max-time 300 https://api.axforge.ai/v1/audio/music \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "minimax-music3",
    "prompt": "Warm acoustic folk, fingerpicked guitar, 90 bpm, hopeful",
    "lyrics": "[verse]\nMorning light on the harbor line\n[chorus]\nWe sail at dawn",
    "duration_s": 60,
    "seed": 11
  }' | jq -r '.data[0].b64_json' | base64 -d > track.wav

The response carries the track in data[].b64_json — a WAV file, 32 kHz stereo, base64-encoded.

Generation takes ~2–3 minutes per track. Use generous client timeouts (the --max-time 300 above) and async patterns — fire the request from a background job, not a user-facing request handler.

Publishing the track? Label it as AI-generated — it was made by MiniMax Music 3 — and check your jurisdiction's disclosure rules for generated media.