Alibaba Cloud Model Studio:wan2.2-s2v image detection API reference

wan2.2-s2v-detect checks whether an input image meets wan2.2-s2v input specifications.

Model and pricing

Model	Unit price	Rate limit (shared by Alibaba Cloud account and RAM users)
		Task submission RPS limit	Concurrent tasks
wan2.2-s2v-detect	$0.000574/image	5	No limit for sync APIs

Billing: You are charged per successful request, regardless of detection result. Failed requests are not billed.

Non-compliant images are still billed - the model executes the full detection flow before determining compliance.

HTTP API

This API checks whether an input image meets wan2.2-s2v portrait specifications.

Prerequisites

• Activate the service and obtain an API key.
• Set the API key as an environment variable.

Image detection API

POST https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/image2video/face-detect

Replace {WorkspaceId} with your actual workspace ID.

Request parameters

Field	Type	Passing method	Required	Description	Example
Content-Type	String	Header	Yes	Request type: application/json.	application/json
Authorization	String	Header	Yes	The API key. The format is Bearer sk-xxx.	Bearer sk-1a**2b
model	String	Body	Yes	The name of the model to call.	wan2.2-s2v-detect
input.image_url	String	Body	Yes	The URL of the image to detect. Supported formats: JPG, JPEG, PNG, BMP, WEBP. Resolution: Width and height must be between 400 and 7,000 pixels. Only publicly accessible HTTP or HTTPS links are supported for image uploads.	http://aaa/bbb.jpg

Response parameters

Field	Type	Description	Example
output.check_pass	Bool	Detection result: true = passed, false = failed.	true
output.humanoid	Bool	Whether a human portrait was detected: true = yes, false = no.	true
usage.image_count	Integer	Image count per request (always 1). You are charged per successful request, regardless of detection result. Failed requests are not billed. Non-compliant images are still billed - the model executes the full detection flow before determining compliance.	1
request_id	String	The unique ID of this request.	7574ee8f-38a3-4b1e-9280-11c33ab46e51

Request example

Replace {WorkspaceId} with your actual workspace ID.

curl 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/image2video/face-detect' \
--header "Authorization: Bearer $DASHSCOPE_API_KEY" \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "wan2.2-s2v-detect",
    "input": {
        "image_url": "https://img.alicdn.com/imgextra/i3/O1CN011FObkp1T7Ttowoq4F_!!6000000002335-0-tps-1440-1797.jpg"
        }
    }'

Response example (passed)

{
    "output":{
        "check_pass": true,
        "humanoid": true
    },
    "usage":{
        "image_count":1
    },
    "request_id":"c56f62df-724e-9c19-96bd-xxxxxx"
}

Response example (failed)

{
    "output":{
        "check_pass": false,
        "code": "",
        "message": ""
    },
    "usage":{
        "image_count":1
    },
    "request_id":"c56f62df-724e-9c19-96bd-xxxxxx"
}

Error codes

For error solutions, see Error codes.