GET

/v1/schemas/worldlabs/world/marble/v1/media-assets:prepare_upload?kind=output

Accept:

kind outputactivity worldhash 0618d082…extracted Nov 10, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. upstream-spec Source trace `4a3ed614672e0b640de378db458907865a4e9c05499482f1e2a79fba5977eebe` { "fetchedAt": 1794287457, "extractorVersion": "2", "verifiedAt": null }

Response body

2 properties · 2 required · 3 $defs

property	type	description	constraints
media_asset*	MediaAsset	The created media asset
upload_info*	UploadUrlInfo	Upload URL information

Types

3 $defs

MediaAssetobject

A user-uploaded media asset stored in managed storage.

created_at*	string	Creation timestamp	format: date-time
extension	string	File extension without dot	nullable
file_name*	string	File name
kind*	enum	High-level media type	image \| video
media_asset_id*	string	Server-generated media asset identifier
metadata	object	Optional application-specific metadata	nullable
updated_at	string	Last update timestamp	format: date-time · nullable

MediaAssetKindenum

High-level media asset type.

image | video

UploadUrlInfoobject

Information required to upload raw bytes directly to storage.

curl_example	string	Optional curl example for convenience	nullable
required_headers	object	Headers that MUST be included when uploading (e.g. Content-Type)	nullable
upload_method*	string	Upload method
upload_url*	string	Signed URL for uploading bytes via PUT

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"worldlabs","endpointId":"marble/v1/media-assets:prepare_upload","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}