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POST
cURL

Authorizations

Authorization
string
header
required

Header authentication in the format Bearer <token>, where <token> is your API key.

Body

GroupId
string
required

Asset group ID.

Example:

"group-20260319072926-rrnmg"

AssetType
enum<string>
required

Asset type. Always pass Audio for audio.

Available options:
Audio
Example:

"Audio"

URL
string
required

Audio URL, data URI, or raw Base64 string (wav/mp3, ≤15 MB).

Example:

"https://example.com/audio.mp3"

model
enum<string>

Billing model. Always pass volc-asset-audio for audio.

Available options:
volc-asset-audio
Example:

"volc-asset-audio"

Name
string

Asset name.

Example:

"background-music"

Response

Audio asset created successfully

Id
string

Asset ID. Referenced in Seedance 2.0 requests as asset://<ID>.

Example:

"asset-20260320120147-pqwhc"