Extract the vocals from a song — a convenient shortcut for process_audio
with task_type='2stems'. Returns two stems: the isolated vocals and the
instrumental. Ideal for a cappella, karaoke, covers or vocal practice.

Args:
    source_key: The source_key returned by upload_audio or get_upload_url.
    format: Output format, 'mp3' (default) or 'wav'.

ParametersJSON Schema

Name	Required	Description	Default
`format`	No		mp3
`source_key`	Yes

get_my_creditsInspect

Check the current user's remaining credits.

ParametersJSON Schema

Name	Required	Description	Default
No parameters

get_upload_urlInspect

Get a presigned URL to upload an audio file directly to R2 storage.

ParametersJSON Schema

Name	Required	Description	Default
`filename`	Yes

list_audio_toolsInspect

List all audio processing capabilities offered by SonicAura.

ParametersJSON Schema

Name	Required	Description	Default
No parameters

process_audioInspect

Process an uploaded audio file. Main entry point for all SonicAura features.

ParametersJSON Schema

Name	Required	Default
`format`	No	mp3
`preset`	No	studio_room
`task_type`	No	4stems
`source_key`	Yes

submit_separationInspect

[Deprecated] Use process_audio instead.

ParametersJSON Schema

Name	Required	Default
`mode`	No	4stems
`format`	No	mp3
`source_key`	Yes

upload_audioInspect

Upload a small audio file (under 1MB) via base64 encoding.

ParametersJSON Schema

Name	Required	Description	Default
`filename`	Yes
`audio_base64`	Yes

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

10 tool updatesOct 15, 2026
- First observedcheck_separation_status
- First observedcheck_service_status
- First observedcheck_task_status
- First observedextract_vocals
- First observedget_my_credits
- First observedget_upload_url
- First observedlist_audio_tools
- First observedprocess_audio
- First observedsubmit_separation
- First observedupload_audio

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