# V2.0

AI Photo Background Change API v2.0 replaces image backgrounds using a custom prompt.

## Create a new file.

 - [POST /s2s/v2.0/file/bg-replace](https://docs.perfectcorp.com/reference/ai_photo_background_change/v2.0/paths/~1s2s~1v2.0~1file~1bg-replace/post.md): To upload a new file, you'll first need to use the File API. It will give you a URL – use that URL to upload your file. Once the upload is finished, you can use the file_id from the same response to start using our AI features.

## List predefined AI photo Background Change V2 templates.

 - [GET /s2s/v2.0/task/template/bg-replace](https://docs.perfectcorp.com/reference/ai_photo_background_change/v2.0/paths/~1s2s~1v2.0~1task~1template~1bg-replace/get.md)

## Run an AI photo Background Change V2 task.

 - [POST /s2s/v2.0/task/bg-replace](https://docs.perfectcorp.com/reference/ai_photo_background_change/v2.0/paths/~1s2s~1v2.0~1task~1bg-replace/post.md): AI tasks are asynchronous. Prefer webhook-based completion handling when the feature supports webhooks. Configure your webhook endpoint, verify webhook signatures, and use the received task_id to query the task result after a success or error notification. See the webhook integration guide for setup and verification details.

If webhooks are not supported for the feature, or if your integration cannot use webhooks, implement polling. After starting an AI task, keep polling the task status endpoint at the given polling_interval until the task status is either success or error.

Do not stop polling a running task for longer than the allowed polling window. If the task is not polled in time, the task may expire; a later status check can return InvalidTaskId even if processing finished, and the consumed units may still be charged.

## Check an AI photo Background Change V2 task status.

 - [GET /s2s/v2.0/task/bg-replace/{task_id}](https://docs.perfectcorp.com/reference/ai_photo_background_change/v2.0/paths/~1s2s~1v2.0~1task~1bg-replace~1%7Btask_id%7D/get.md)