Endpoint

POST /v1/assets/{id}/download

Export a finished asset to a format and get a short-lived signed download URL.

Request body

{ "format": "fbx", "texturePreset": "unity", "name": "chest" }

Field	Type	Required	Description
`format`	`enum`	Yes	`glb`, `fbx`, or `obj`.
`texturePreset`	`enum`	No	`standard` (default) or `unity` (URP/Built-in channel split, ships a `.meta`). For fbx/obj.
`name`	`string`	No	Base filename. Defaults to `model`.

Response

{
  "success": true,
  "data": {
    "url": "https://...signed",
    "format": "fbx",
    "archive": true,
    "contentType": "application/zip",
    "filename": "chest.zip"
  }
}

glb is a single file. fbx and obj are ZIP bundles — they pack the model

textures (+ a .meta for the Unity preset) as a .zip; unzip before importing.