POST images/enhance — Kling API v1

Enhance Images

October 15, 2026

Request Headers
Request Body
Responses
Model
Examples
Try It

This endpoint runs Kling’s Image Enhancing, which enhances the quality of an image and restores its details. It takes any image URL, for example one uploaded via POST /assets.

POST /images/upscale works only on an image Kling generated, identified by its task_id and workId. This endpoint takes any image URL instead.

Enhancing costs 1 Kling credit at 2k and 2 credits at 4k. The output size depends on the input image. For example, an 800×1200 image came back as 1664×2496 with 2k, and a 768×1344 image came back as 1536×2704 with 4k.

https://api.useapi.net/v1/kling/images/enhance

Request Headers

Authorization: Bearer {API token}
Content-Type: application/json
# Alternatively you can use multipart/form-data
# Content-Type: multipart/form-data

API token is required, see Setup useapi.net for details.

Request Body

{
  "email": "[email protected]",
  "image": "https://s21-kling.klingai.com/ai-platform/xxx/xxx.jpg",
  "resolution": "2k"
}

email is optional when only one account configured.
However, if you have multiple accounts configured, this parameter becomes required.
image is required, the URL of the image to enhance.
You can upload an image via POST /assets and use the returned URL.
resolution is optional.
Supported values: 2k (1 credit), 4k (2 credits).
Default: 2k.
maxJobs is optional, range from 1 to 50.
Specifies the maximum number of concurrent jobs.
replyUrl is optional, a callback URL to receive generation progress and result.
See GET /tasks/task_id for response model.
replyRef is optional, a reference identifier for the callback.

Responses

200 OK

{
  "task": {
    "id": 123456789,
    "userId": 12345,
    "type": "mmu_image_refiner",
    "scene": "NORMAL_CREATION",
    "status": 5,
    "status_name": "submitted",
    "status_final": false,
    "taskInfo": {
      "type": "mmu_image_refiner",
      "inputs": [
        {
          "name": "input",
          "inputType": "URL",
          "token": null,
          "blobStorage": null,
          "url": "https://s21-kling.klingai.com/ai-platform/xxx/xxx.jpg",
          "cover": null,
          "fromWorkId": null
        }
      ],
      "arguments": [
        {
          "name": "biz",
          "value": "klingai"
        },
        {
          "name": "imageCount",
          "value": "1"
        },
        {
          "name": "source",
          "value": "TOOLBOX"
        },
        {
          "name": "img_resolution",
          "value": "2k"
        }
      ],
      "extraArgs": {},
      "callbackPayloads": [],
      "scene": "NORMAL_CREATION"
    },
    "favored": false,
    "deleted": false,
    "viewed": false,
    "createTime": 1760558400000,
    "updateTime": 1760558400000
  },
  "works": [],
  "status": 5,
  "status_name": "submitted",
  "status_final": false,
  "message": "",
  "userPoints": {
    "points": [],
    "total": 0
  },
  "userTickets": {
    "ticket": []
  },
  "editProject": null
}

400 Bad Request

The parameters are invalid. When Kling refuses the submitted parameters, error carries Kling’s own message.
```
{
  "error": "Parameter resolution (8k) valid values: 2k,4k"
}
```

401 Unauthorized

{
  "error": "Unauthorized",
  "code": 401
}

500 Internal Server Error

Kling uses a 500 response to indicate moderation and other issues with the input. It may be hard to separate actual 500 errors from moderation errors, so use the error field text and your best judgement to tell them apart, since the message field most often has very generic and perhaps misleading text.
```
{
  "error": "The content you uploaded appears to violate the community guidelines. (CM_EXT.POther)",
  "message": "Service busy (CM_EXT.POther)"
}
```

When successful, the response includes a task ID which can be used to check the status using GET /tasks/task_id. The enhanced image is in the works array once the task succeeds.

Model

{ // TypeScript, all fields are optional
    task: {
        id: number
        userId: number
        type: string
        scene: string
        status: number
        status_name: 'submitted' | 'failed' | 'processing' | 'succeed'
        status_final: boolean
        taskInfo: {
            type: string
            inputs: Array<{
                name: string
                inputType: string
                token: string | null
                blobStorage: any | null
                url: string
                cover: string | null
                fromWorkId: number | null
            }>
            arguments: Array<{
                name: string
                value: string
            }>
            extraArgs: Record<string, any>
            callbackPayloads: any[]
            scene: string
        }
        favored: boolean
        deleted: boolean
        viewed: boolean
        createTime: number
        updateTime: number
        viewTime: number
    }
    works: Array<any>
    status: number
    status_name: 'submitted' | 'failed' | 'processing' | 'succeed'
    status_final: boolean
    message: string
    error: string
    userPoints: {
        points: Array<{
            orderId: string
            type: string
            amount: number
            balance: number
            startTime: number
            endTime: number
        }>
        total: number
    }
    userTickets: {
        ticket: Array<{
            orderId: string
            type: string
            packageType: string
            amount: number
            balance: number
            startTime: number
            endTime: number
        }>
    }
    editProject: any | null
}

Examples

curl -X POST "https://api.useapi.net/v1/kling/images/enhance" \
   -H "Content-Type: application/json" \
   -H "Authorization: Bearer …" \
   -d '{
     "email": "[email protected]",
     "image": "https://s21-kling.klingai.com/ai-platform/xxx/xxx.jpg",
     "resolution": "4k"
   }'

const token = "API token";
const email = "Previously configured account email";
const apiUrl = "https://api.useapi.net/v1/kling/images/enhance";
const response = await fetch(apiUrl, {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": `Bearer ${token}`,
  },
  body: JSON.stringify({
    email: email,
    image: "https://s21-kling.klingai.com/ai-platform/xxx/xxx.jpg",
    resolution: "4k"
  })
});
const result = await response.json();
console.log("response", {response, result});

import requests
token = "API token"
email = "Previously configured account email"
apiUrl = "https://api.useapi.net/v1/kling/images/enhance"
headers = {
    "Content-Type": "application/json",
    "Authorization" : f"Bearer {token}"
}
data = {
    "email": email,
    "image": "https://s21-kling.klingai.com/ai-platform/xxx/xxx.jpg",
    "resolution": "4k"
}
response = requests.post(apiUrl, headers=headers, json=data)
print(response, response.json())