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Source: Roblox Creator Hub · CC BY 4.0 · View source · Code samples: MIT Imported 2026-10-03. Formatting adapted for this site.

Usage guide for assets

The Assets API of Open Cloud allows you to upload and update assets with a single HTTP request rather than manually importing them to Studio. This API supports:

• Uploading new assets.
• Updating existing assets with version control.
• Updating asset metadata, including descriptions, display names, icons, and previews.
• Managing asset versions, such as rolling back to a specified previous version.
• Checking existing information of an asset, including metadata, versions, and any in-process updating operations.

Note

This API contains beta endpoints that might be subject to changes for future releases.

Supported asset types and limits

For endpoints that don't create a new asset or update the content of existing assets, there are no restrictions and limits. However, the asset content uploading functionality powered by the Create Asset and Update Asset endpoints only supports limited types of assets with restrictions. For each call, you can only create or update one asset with the file size up to 20 MB with the following limits:

Note

Updating asset metadata using the Update Asset endpoint is not subject to the following limits.

Security permissions

The API supports both first-party use with API key authorization and third-party use in OAuth 2 applications. Each way requires different security permission settings.

API keys

To use the API in your own scripts or tools, you need to create an API key for authorization and security.

Note

To create an API key for managing group assets, you must have the corresponding permissions. For more information on granting group permissions, see Group roles and permissions.

When creating an API key, make sure to add the following permissions:

1. Add assets to Access Permissions.
2. Add Read and Write operation permissions to your selected game, depending on the required scopes of the endpoints you plan to call.

Once you have the API key, copy it to the x-api-key request header. All endpoints require the x-api-key request header.

--header 'x-api-key: ${ApiKey}' \

OAuth 2.0 apps

To use the API for a third-party OAuth 2.0 application, add the asset:read and asset:write permission scopes when registering your app. Choose these scopes based on the requirements of the endpoints you plan to use.

Create a new asset

To upload a new asset by an HTTP request:

1. Copy the API key to the x-api-key request header of the Create Asset endpoint.

2. In your request:

   1. Specify the target asset type.
   2. Add your asset name and description.
   3. Add the creator information.
      • If you want to create the asset on your own behalf, add your user ID. You can find your user ID on the URL of your Roblox profile. For example, for https://www.roblox.com/users/1234567/profile, your user ID is 1234567.
      • If you want to create the asset as a group asset, add the group ID of your group. You can find the group ID on the URL of your group's page. For example, for https://www.roblox.com/groups/7654321/example-group#!/, the group ID is 7654321.
   4. Add the file path and content type of your asset.

   curl --location 'https://apis.roblox.com/assets/v1/assets' \
   --header 'x-api-key: ${ApiKey}' \
   --form 'request="{
     \"assetType\": \"Model\",
     \"displayName\": \"Name\",
     \"description\": \"This is a description\",
     \"creationContext\": {
       \"creator\": {
         \"userId\": \"${userId}\" # Use groupId for creating a group asset
       }
     }
   }"' \
   --form 'fileContent=@"/filepath/model.fbx";type=model/fbx'
   

Update an existing asset

Note

Asset updating is powered by beta endpoints that might be subject to changes for future releases.

To update an existing asset by an HTTP request:

1. Copy the API key to the x-api-key request header of the Update Asset endpoint.
2. Add the asset type and asset ID in your request. To copy your asset ID:
   1. Navigate to the Creation page of the Creator Dashboard.
   2. Select the Development Items category.
   3. Select the category of your asset and find the target asset.
   4. Hover over the thumbnail of the target asset and click the ⋯ button to display a list of options, then select Copy Asset ID from the list.

Asset Content

Note

Currently, you can only update the asset content for .fbx files. The update creates a new version.

curl --location --request PATCH 'https://apis.roblox.com/assets/v1/assets/{assetId}' \
--header 'x-api-key: {apiKey}' \
--form 'request={
    \"assetType\": \"{assetType}\",
    \"assetId\": \"{assetId}\",
    \"creationContext\": {
        \"creator\": {
            \"userId\": {userId}
        },
        \"expectedPrice\":{expectedPrice}
    },
}' \
--form 'fileContent=@"{file-path}"'

Metadata

curl --location --request PATCH 'https://apis.roblox.com/assets/v1/assets/{assetId}?updateMask=description%2CdisplayName' \
--header 'x-api-key;' \
--form 'request={
    \"assetType\": \"{assetType}\",
    \"assetId\": \"{assetId}\",
    \"displayName\": \"{new display name}\",
    \"description\": \"{new description}\"
}'

Content and Metadata

curl --location --request PATCH 'https://apis.roblox.com/assets/v1/assets/{assetId}?updateMask=description%2CdisplayName' \
--header 'x-api-key: {apiKey}' \
--form 'request={
    \"assetType\": \"{assetType}\",
    \"assetId\": \"{assetId}\",
    \"displayName\": \"{new display name}\",
    \"description\": \"{new description}\",
    \"creationContext\": {
        \"creator\": {
            \"userId\": {userId}
        },
        \"expectedPrice\":{expectedPrice}
    },
}' \
--form 'fileContent=@\"{file-path}\"'

Retrieve asset operation status

If your request for creating a new asset or updating an existing asset succeeds, it returns an Operation ID in the format of { "path": "operations/${operationId}" }. You can use it to check the status and result of your upload with the following steps:

1. Copy the API key to the x-api-key request header of the Get Operation method and send the request, like the following code sample:

   curl --location 'https://apis.roblox.com/assets/v1/operations/{operationId}' \
   --header 'x-api-key: {$ApiKey}'
   

2. If your request succeeds, it returns an Operation object, either including a response representing the uploaded asset information or a status explaining why the asset upload fails as the following code sample shows:

   {
     "path": "operations/{operationId}",
     "done": true,
     "response": {
       "@type": "type.googleapis.com/roblox.open_cloud.assets.v1.Asset",
       "path": "assets/2205400862",
       "revisionId": "1",
       "revisionCreateTime": "2023-03-02T22:27:04.062164400Z",
       "assetId": "2205400862",
       "displayName": "Name",
       "description": "This is a description",
       "assetType": "ASSET_TYPE_DECAL",
       "creationContext": {
         "creator": {
           "userId": "11112938575"
         }
       },
       "moderationResult": {
         "moderationState": "MODERATION_STATE_APPROVED"
       }
     }
   }

Check the created asset on your Roblox account.

1. Navigate to the Inventory page of your Roblox account.
2. Select the Category of the asset that you want to check.
3. Find the target asset and click its thumbnail to view the asset.

Add assets API to OAuth 2.0 apps

You can create OAuth 2.0 applications supporting Assets API to allow your users to upload and update assets to Roblox.

Note

Third-Party app support through OAuth 2.0 is a Beta feature that might be subject to changes for future releases.

To use Assets API for your application and request permissions from your users, perform the following settings:

1. When registering your application, under Permissions, select asset:read and asset:write scopes.

2. When implementing the authorization flow, include asset:read and asset:write as the scope parameters of the authorization URL that redirects users back to your application, like the following example:

   https://apis.roblox.com/oauth/v1/authorize?client_id=819547628404595165403873012&redirect_uri=https://my-app.com/redirect&scope=asset:read+asset:write&response_type=Code&prompts=login+consent&nonce=12345&state=6789

3. When sending the request, include the access token in the authorization header and the form data of the asset content to create or update in the request URI in. The following example shows a sample request for uploading a new asset:

   curl --location --request POST 'https://apis.roblox.com/assets/v1/assets' \
   
   --header 'Authorization: Bearer <access_token>' \
   
   --header 'Content-Type: application/json' \
   
   --form 'request="{
   
     \"assetType\": \"Decal\",
   
     \"displayName\": \"DecalDemo123\",
   
     \"description\": \"This is a description\",
   
     \"creationContext\": {
   
       \"creator\": {
   
       \"userId\": \"<user_id>\"
   
       }
     }
   
   }"' \
   
   --form 'fileContent=@"/filepath/p1.png"'