{
"openapi": "3.0.0",
"info": {
"title": "AI Video Background Replace",
"description": "# Overview\n\n**AI Video Background Replace**\n\n\n\nThe AI Video Background Replace API enables you to seamlessly add any background you choose. You can select from a wide range of options, including scenic landscapes, custom images, or even lighthearted visuals, giving you complete creative control to design the ideal setting for your content.\nThere is no need for a studio or green screen. You can easily replace video backgrounds to achieve a clean and professional look. Whether you want to introduce a new environment or remove unwanted distractions, this solution is ideal for producing engaging videos and tutorials without requiring expensive equipment.\n\n\n---\n\n## Integration Guide\n\n**1. Prepare a Source Video and a Background Image**\nThe output must be in MP4 format with the same resolution as the input, a frame rate capped at 30 frames per second with automatic conversion if the input exceeds this limit, and a maximum duration of 600 seconds with only the first 600 seconds retained if the input video is longer.\n\nThe background image must be in JPG or PNG format with a maximum resolution of 4096 by 4096 pixels with the long side not exceeding 4096 pixels and a file size limit of 10 megabytes.\n\n\n**2. Upload File**\nRequest upload URLs and file IDs via:\n\n```\nPOST /s2s/v2.0/file\n```\n\n\n**3. Execute AI Task**\n\n```\nPOST /s2s/v2.0/task/bg-replace-vid\n```\n\nSubmit the task using file IDs or image URLs as input. The response returns a task_id for tracking and retrieving the result.\n\n\n**4. Retrieve Task Result**\n\n```\nGET /s2s/v2.0/task/bg-replace-vid/{task_id}\n```\n\nUse the task ID to track status and obtain results.\n\n[Webhooks](/develop/webhook.md) can be configured to receive asynchronous notifications on task completion with a success or error status. Polling is also supported by repeatedly calling the task endpoint until the status is updated from running to success or error.\n\nUsage is only charged when the task completes successfully.\n\n\n\n---\n\n## File Specs & Errors\n\n* Supported Formats & Dimensions\n\n|AI Feature|Supported Dimensions|Supported File Size|Supported Formats|\n| ---- | ---- | ---- | ---- |\n| AI Video Background Replace | The output must be in MP4 format with the same resolution as the input, a frame rate capped at 30 frames per second with automatic conversion if the input exceeds this limit, and a maximum duration of 600 seconds with only the first 600 seconds retained if the input video is longer.
The background image must be in JPG or PNG format with a maximum resolution of 4096 by 4096 pixels with the long side not exceeding 4096 pixels and a file size limit of 10 megabytes. | Video length limit: 600s
Background image: <10MB | container: mp4
video: MPEG-4, MPEG-4 AVC,
audio: aac, amr, mp3 |\n\n* Error Codes\n\n|Error Code|Description|\n| ---- | ---- |\n| error_download_video | Download source video error |\n| error_decode_video | Decode source video error |\n| error_unsupported_video | Unsupported video format |\n| exceed_max_filesize | Input file size exceeds the maximum limit|\n| error_nsfw_content_detected | NSFW content detected in the source file |\n| error_decode_mask | Decode mask image error |\n| invalid_parameter | Invalid parameter value|\n\n* Environment & Dependency\n\n| Sample Code Language / Tool | Recommended Runtime Versions |\n|---|---|\n| cURL | - bash >= 3.2 - curl >= 7.58 (modern TLS/HTTP support) - jq >= 1.6 (robust JSON parsing) |\n| Node.js (JavaScript) | Node >= 18 (for global fetch) |\n| JavaScript | - Chrome / Edge >= 80 - Firefox >= 74 - Safari >= 13.1 |\n| PHP | PHP >= 7.4 (for modern TLS/compat), ext-curl (recommended) or allow_url_fopen=On + ext-openssl, ext-json |\n| Python | Python >= 3.10 (for f-strings), requests >= 2.20.0 |\n| Java | Java 11+ (for HttpClient), Jackson Databind >= 2.12.0 |\n",
"version": "",
"termsOfService": "https://www.makeupar.com/perfectbeauty/youcam/terms-of-service-api",
"contact": {
"email": "YouCamOnlineEditor_API@perfectcorp.com"
},
"license": {
"name": "Privacy policy",
"url": "https://www.makeupar.com/perfectbeauty/youcam/privacy-policy-api"
}
},
"servers": [
{
"url": "https://yce-api-01.makeupar.com"
}
],
"tags": [
{
"name": "V2.0",
"description": "AI Video Background Replace"
}
],
"paths": {
"/s2s/v2.0/task/bg-replace-vid": {
"post": {
"summary": "Run an AI Video Background Replace task.",
"description": "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](/develop/webhook.md) for setup and verification details.\n\nIf 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`.\n\nDo 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.\n",
"tags": [
"V2.0"
],
"security": [
{
"BearerAuthenticationV2": []
}
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
"allOf": [
{
"$ref": "#/components/schemas/BasicRunTaskV2VidSrcWithRequiredRefImg"
},
{
"type": "object",
"properties": {
"background_mode": {
"type": "string",
"enum": [
"crop",
"stretch"
],
"default": "crop",
"description": "How the background image (the ref file) is fit onto the source video. `crop` keeps the background's aspect ratio and crops it to fill; `stretch` scales the background to the source video's dimensions."
}
}
}
]
}
}
}
},
"responses": {
"200": {
"description": "Successful execution of the task",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/BasicRunTaskResponseV2"
}
}
}
},
"400": {
"description": "Failed execution of task",
"content": {
"application/json": {
"schema": {
"allOf": [
{
"$ref": "#/components/schemas/RunError"
}
]
}
}
}
},
"401": {
"$ref": "#/components/responses/InvalidApiKey"
},
"429": {
"$ref": "#/components/responses/TooManyRequests"
}
}
}
},
"/s2s/v2.0/task/bg-replace-vid/{task_id}": {
"get": {
"summary": "Check the status of an AI Video Background Replace task.",
"tags": [
"V2.0"
],
"security": [
{
"BearerAuthenticationV2": []
}
],
"parameters": [
{
"name": "task_id",
"in": "path",
"required": true,
"schema": {
"type": "string",
"example": "grH0CvsgXuAIHLUzD0V1Ol34hoet3R1tvdbtiVHrDb6_UqCLKIejAIajwxrhOAfe"
},
"description": "ID of task to check"
}
],
"responses": {
"200": {
"description": "Successful check of the task status",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/TaskStatusResponseV2"
}
}
}
},
"400": {
"$ref": "#/components/responses/InvalidTaskId"
},
"401": {
"$ref": "#/components/responses/InvalidApiKey"
},
"500": {
"$ref": "#/components/responses/TaskTimeout"
}
}
}
}
},
"components": {
"securitySchemes": {
"BearerAuthenticationV2": {
"type": "http",
"scheme": "bearer",
"description": "Use the standard 'Bearer authentication'. Put your 'API Key' in header: \\`Authorization:Bearer YOUR_API_KEY\\`. Notice that there is ' ' a space between 'Bearer' and the 'YOUR_API_KEY'."
}
},
"schemas": {
"BasicRunTaskV2VidSrcFileUrl": {
"type": "object",
"required": [
"src_file_url"
],
"properties": {
"src_file_url": {
"type": "string",
"description": "Url of the file to run task. The url should be publicly accessible.",
"example": "https://example.com/cat_video.mp4"
}
}
},
"BasicRunTaskV2RefFileUrl": {
"type": "object",
"properties": {
"ref_file_url": {
"type": "string",
"description": "Url of the reference file to run task. The url should be publicly accessible.",
"example": "https://example.com/accessory.jpg"
}
}
},
"BasicRunTaskV2RefFileId": {
"type": "object",
"properties": {
"ref_file_id": {
"type": "string",
"description": "ID of the reference file to run task. File ID from upload file API.",
"example": "pfNK5PuRe0MrwLHcGA3DOmB1ahwfXTbYHjv+KoBIxbE="
}
}
},
"BasicRunTaskV2SrcFileId": {
"type": "object",
"required": [
"src_file_id"
],
"properties": {
"src_file_id": {
"type": "string",
"description": "ID of file to run task. File ID from upload file API.",
"example": "pfNK5PuRe0MrwLHcGA3DOmB1ahwfXTbYHjv+KoBIxbE="
}
}
},
"BasicRunTaskV2VidSrcWithRequiredRefImg": {
"title": "BasicRunTaskV2VidSrcWithRequiredRefImg",
"anyOf": [
{
"allOf": [
{
"title": "Run task with src video url & ref file url",
"required": [
"ref_file_url"
]
},
{
"$ref": "#/components/schemas/BasicRunTaskV2VidSrcFileUrl"
},
{
"$ref": "#/components/schemas/BasicRunTaskV2RefFileUrl"
}
]
},
{
"allOf": [
{
"title": "Run task with src video url & ref file ID",
"required": [
"ref_file_id"
]
},
{
"$ref": "#/components/schemas/BasicRunTaskV2VidSrcFileUrl"
},
{
"$ref": "#/components/schemas/BasicRunTaskV2RefFileId"
}
]
},
{
"allOf": [
{
"title": "Run task with src video ID & ref file url",
"required": [
"ref_file_url"
]
},
{
"$ref": "#/components/schemas/BasicRunTaskV2SrcFileId"
},
{
"$ref": "#/components/schemas/BasicRunTaskV2RefFileUrl"
}
]
},
{
"allOf": [
{
"title": "Run task with src video ID & ref file ID",
"required": [
"ref_file_id"
]
},
{
"$ref": "#/components/schemas/BasicRunTaskV2SrcFileId"
},
{
"$ref": "#/components/schemas/BasicRunTaskV2RefFileId"
}
]
}
]
},
"BasicRunTaskResponseV2": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"description": "Response status",
"example": 200
},
"data": {
"type": "object",
"properties": {
"task_id": {
"type": "string",
"description": "ID of this task. Task result is valid to query by this ID for 24 hours.",
"example": "grH0CvsgXuAIHLUzD0V1Ol34hoet3R1tvdbtiVHrDb6_UqCLKIejAIajwxrhOAfe"
}
}
}
}
},
"RunError": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"description": "Response status",
"example": 400
},
"error": {
"type": "string",
"description": "Error message",
"example": "The operation could not be completed"
},
"error_code": {
"type": "string",
"enum": [
"InvalidParameters",
"CreditInsufficiency",
"InvalidStyleGroup",
"InvalidStyle",
"BadRequest"
],
"description": "Error code:\n * InvalidParameters - Invalid request parameters\n * CreditInsufficiency - Insufficient unit to run\n * BadRequest - Unexpected request parameter\n * InvalidStyleGroup - Invalid style group id\n * InvalidStyle - Invalid style id\n"
}
}
},
"EngineErrorCode": {
"type": "string",
"nullable": true,
"enum": [
"error_exceed_max_image_size",
"exceed_max_filesize",
"invalid_parameter",
"error_download_image",
"error_download_mask",
"error_decode_image",
"error_decode_mask",
"error_nsfw_content_detected",
"error_no_face",
"error_pose",
"error_face_parsing",
"error_inference",
"exceed_nsfw_retry_limits",
"error_upload",
"unknown_internal_error"
],
"description": "Errors:\n- \\`error_exceed_max_image_size\\` - Input image size exceeds the maximum limit\n- \\`exceed_max_filesize\\` - Input file size exceeds the maximum limit\n- \\`invalid_parameter\\` - Invalid parameter value\n- \\`error_download_image\\` - Download source image error\n- \\`error_download_mask\\` - Download mask image error\n- \\`error_decode_image\\` - Decode source image error\n- \\`error_decode_mask\\` - Decode mask image error\n- \\`error_nsfw_content_detected\\` - NSFW content detected in source image\n- \\`error_no_face\\` - No face detected on source image\n- \\`error_pose\\` - Failed to detect pose on source image\n- \\`error_face_parsing\\` - Failed to do face segmentation on source image\n- \\`error_inference\\` - Inference pipeline error\n- \\`exceed_nsfw_retry_limits\\` - Exceed the retry limits to avoid generated NSFW image\n- \\`error_upload\\` - Upload result image error\n- \\`unknown_internal_error\\` - Others\n"
},
"TaskStatusResponseBodySingleUrlResultsV2": {
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "URL to download this result. Valid for 2 hours",
"example": "https://example.com/sample-result-url"
}
}
},
"TaskStatusResponseV2": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"description": "Response status",
"example": 200
},
"data": {
"type": "object",
"properties": {
"task_status": {
"type": "string",
"enum": [
"running",
"success",
"error"
],
"description": "Status of this task"
},
"error": {
"$ref": "#/components/schemas/EngineErrorCode"
},
"error_message": {
"type": "string",
"description": "Detailed description of error"
},
"results": null
}
}
},
"$ref": "#/components/schemas/TaskStatusResponseBodySingleUrlResultsV2"
}
},
"responses": {
"InvalidApiKey": {
"description": "Invalid or missing API key",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"example": 401,
"description": "Response status"
},
"error": {
"type": "string",
"example": "Invalid API key"
}
}
}
}
}
},
"TooManyRequests": {
"description": "Too many requests",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"example": 429,
"description": "Response status"
},
"error": {
"type": "string",
"example": "Too many requests"
}
}
}
}
}
},
"InvalidTaskId": {
"description": "Invalid task ID",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"example": 400,
"description": "Response status"
},
"error": {
"type": "string",
"example": "Invalid task ID"
}
}
}
}
}
},
"TaskTimeout": {
"description": "Task execution timeout",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"example": 500,
"description": "Response status"
},
"error": {
"type": "string",
"example": "Task execution timed out"
}
}
}
}
}
}
}
}
}