Draw an audio waveform

curl -X POST "$DOATHING_API/v1/media/audio-waveform" \
  -H "x-api-key: $DOATHING_KEY" \
  -H "content-type: application/json" \
  -d '{"file": {"filename": "recording.mp3", "content_type": "audio/mpeg", "data_b64": "<base64>"}, "options": {"width": 1200, "height": 240, "colour": "#C15F3C"}}'

The picture a player shows above a track, as a transparent PNG you can drop into a page.

Render an audio waveform as a PNG at a chosen size, colour and background.

Input

Send a file object with base64 data_b64, its content_type and a filename. Accepted types: audio/mpeg, audio/wav, audio/ogg, audio/flac, audio/mp4.

The declared type is not trusted — the bytes are sniffed and a contradiction is rejected rather than corrected.

Response

The result carries your remaining balance alongside it, so you can track spend without a second call.

{
  "width": 1200,
  "height": 240,
  "duration_seconds": 184.32,
  "request_id": "37f01edb-0163-42a1-ac51-0acaef979800",
  "credits_remaining": 96
}

Cost

5 credits per call, whether it is run from the site or from the API — the credential differs, the price does not. A new account starts with 20 credits.

A rejected request still costs a credit: the authorizer decrements before the tool validates. A call rejected for a missing or invalid key is free.