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HeartMuLa Transcribe API reference

Lyrics pulled from sung vocals, in many languages

Call HeartMuLa Transcribe from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.

At a glance

Made by
HeartMuLa
Output
Audio
From
7.5 credits per request ($0.075)

1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.

Speech to Text

heartmula/transcribe/speech-to-text

Price

OptionCredits (per request)US dollars
Default7.5$0.075

Parameters

FieldTypeDefaultAllowedWhat it does
audio_urlRequiredstring (uri)——URL of the audio file to transcribe. Must resolve directly to audio, not to a web page.

Example request

This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.

The example uses PopNow sample files in audio_url. Replace them with your own public HTTPS links, uploads or saved assets.

POST /api/v1/jobs/createTask
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "model": "heartmula/transcribe/speech-to-text",
  "input": {
    "audio_url": "https://media.popnow.ai/shortfilm/voices/Aoede-46e4c427.mp3"
  }
}'

The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.

GET /api/v1/jobs/recordInfo
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Next steps

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