AI Model Scene & Background Replacement

Generate scene variants for a model image using either a scene reference image or a text scene prompt. Available via REST API or MCP.

CostEst. 47–57 credits / call

Try online

POST · https://api.nexscope.ai/ai/modelSceneBackgroundReplacementMCP · nexscope_ai_model_scene_background_replacement

Subscription required. Creative AI APIs are available only to users with an active subscription. Trial credits do not enable API key access. View subscription plans.

Choose an integration method

Multimodal AI

What this API does

Generate scene variants for a model image using either a scene reference image or a text scene prompt. The request accepts imageUrl, sceneImgUrl, scenePrompt, imageSegUrl, sceneStrength. Generation runs as a task: retain the task ID and retrieve the completed result before using the output.

AI Model Scene & Background Replacement API use cases

Prepare product background variants

To prepare product background variants, a content editor submits imageUrl and sceneImgUrl to AI Model Scene & Background Replacement. The returned completed generation results help choose a background that fits the product presentation.

Adapt images for campaign placements

A content editor uses AI Model Scene & Background Replacement with imageUrl and sceneImgUrl to adapt images for campaign placements. The returned completed generation results help review an asset against the campaign placement brief.

Review product presentation before publishing

For this workflow, a content editor calls AI Model Scene & Background Replacement with imageUrl and sceneImgUrl to review product presentation before publishing. The result helps check the product remains clear against its new background.

AI Model Scene & Background Replacement API FAQ

What does the AI Model Scene & Background Replacement API return?

Generate scene variants for a model image using either a scene reference image or a text scene prompt. It corresponds to the supplied imageUrl, sceneImgUrl, scenePrompt, imageSegUrl, sceneStrength. The initial response can contain a task ID and status; the completed task result contains the generated output. Example values illustrate the response shape, rather than live account results.

How many credits does the AI Model Scene & Background Replacement API cost?

The current documented cost is Est. 47–57 credits / call. This is the same cost shown at the top of this page. If a range or estimate is displayed, the final charge depends on the request. Review your available credits and the pricing page before calling the API, and check API usage records for the actual charge.

How do I call the AI Model Scene & Background Replacement API from my app or an MCP client?

Send a POST request to https://api.nexscope.ai/ai/modelSceneBackgroundReplacement with your API key as a Bearer token and the JSON inputs shown in API integration. In a compatible MCP client such as Claude or Cursor, connect Nexscope and call nexscope_ai_model_scene_background_replacement. Use the MCP arguments shown in the MCP guide, or switch Online test to MCP to review its request before adding it to your app.

View plans and credits Connect this API with MCP

Try this API

Endpoint

https://api.nexscope.ai/ai/modelSceneBackgroundReplacement

MCP method

nexscope_ai_model_scene_background_replacement

Step 1 of 3 · Authenticate

Authentication

All run endpoints require a user API key. Send it as a bearer token in the Authorization header.

Authorization: Bearer nk-xxxxxxxxxxxxxxxxx

Missing or invalid API keys return an authentication error. Manage keys from .

Step 2 of 3 · Send a request

POSThttps://api.nexscope.ai/ai/modelSceneBackgroundReplacement

Run an API

Generate scene variants for a model image using either a scene reference image or a text scene prompt.

Example request

Replace YOUR_API_KEY, then run this command in your terminal.

curl -X POST 'https://api.nexscope.ai/ai/modelSceneBackgroundReplacement' \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "genOriRes": false,
  "imageUrl": "https://example.com/model-reference.jpg",
  "outputNum": 1,
  "realModel": true,
  "scenePrompt": "bright studio showroom",
  "sceneStrength": 0.7
}'

Step 3 of 3 · Inspect the result

Check the response

Read code for the request status and data for the result. Open the parameter and response reference for the full field definitions.

HTTP status codes

Code	Description
200	HTTP request completed. Check JSON code; only 0 indicates business success or acceptance.
400	Request JSON or required API parameters are invalid.
401	API key is missing, invalid, or cannot be matched to a user.
5xx	API execution or upstream service failed.

View parameters & response Try online

All categories/ Multimodal AI

POSThttps://api.nexscope.ai/ai/modelSceneBackgroundReplacement

Run this API

Send a JSON request to execute this API and receive the documented response payload.

Open tester

Endpoint

Method	`POST`
Path	`https://api.nexscope.ai/ai/modelSceneBackgroundReplacement`
Auth	`Bearer API key`
Content-Type	`application/json`

Request parameters

Name	Type	Required	Description
`imageUrl`	`string`	required	Public URL of the model image. The image must be up to 20 MB and between 385 and 8192 pixels in both width and height. Example: https://example.com/model-reference.jpg
`sceneImgUrl`	`string`	conditional	Optional public URL of the target scene reference. Example: https://example.com/scene.jpg
`scenePrompt`	`string`	conditional	Optional text prompt describing the target scene. Example: bright studio showroom
`imageSegUrl`	`string`	optional	Optional model segmentation mask URL. Example: https://example.com/mask.png
`sceneStrength`	`number`	optional	Scene reference strength from 0 to 1. Defaults to 0.7. Example: 0.7
`genOriRes`	`boolean`	optional	Whether to generate the original resolution. Defaults to false. Example: false
`realModel`	`boolean`	optional	Whether to prefer realistic model rendering. Example: true
`outputNum`	`integer`	optional	Number of images to generate, from 1 to 4. Defaults to 1. Example: 1

Code example

{
  "genOriRes": false,
  "imageUrl": "https://example.com/model-reference.jpg",
  "outputNum": 1,
  "realModel": true,
  "scenePrompt": "bright studio showroom",
  "sceneStrength": 0.7
}

Response example

Platform response envelope. code 0 indicates success or acceptance; data contains the business result.

{
  "code": 0,
  "cost": "-1",
  "data": {
    "result": null,
    "status": "PENDING",
    "taskId": "example-task"
  },
  "msg": null,
  "time": "2026-01-01 00:00:00",
  "traceId": null,
  "ts": "0"
}

Response fields

Name	Type	Required	Description
`code`	`integer`	required	0 means accepted or successful; nonzero is a platform error.
`cost`	`string`	required	Elapsed milliseconds, never credits; -1 outside web requests.
`data`	`any`	required	Data value used by this API operation.
`msg`	`string \| null`	required	Msg value used by this API operation.
`time`	`string`	required	Server local time: yyyy-MM-dd HH:mm:ss.
`traceId`	`string \| null`	required	Trace id value used by this API operation.
`ts`	`string`	required	Epoch milliseconds.

Any of option 1 — requires taskId, status, result

Name	Type	Required	Description
`data`	`object`	required	Data value used by this API operation.
`data.result`	`any`	required	Result value used by this API operation.
`data.status`	`string`	required	Status value used by this API operation. Allowed: PENDING, RUNNING, SUCCEEDED, FAILED, TIMEOUT
`data.taskId`	`string`	required	Task id value used by this API operation.
`data.usage`	`object`	optional	Actual credits charged for a completed successful task; omitted when unavailable.
`data.usage.chargedCredits`	`integer`	required	Charged credits value used by this API operation. Minimum: 0

Any of option 1

Name	Type	Required	Description
`data.result`	`object`	required	Completed generation output retained from the task result. Fields vary by capability; generated resources use Nexscope-hosted URLs and any count represents charged Nexscope credits. This is the business output, not a task creation receipt.

Any of option 2

Name	Type	Required	Description
`data.result`	`null`	required	Result value used by this API operation.

Any of option 2

Name	Type	Required	Description
`data`	`null`	required	Data value used by this API operation.

Responses

Code	Description
200	HTTP request completed. Check JSON code; only 0 indicates business success or acceptance.
400	Request JSON or required API parameters are invalid.
401	API key is missing, invalid, or cannot be matched to a user.
5xx	API execution or upstream service failed.

Step 1 of 2 · Connect your MCP client

MCP

V2 recommended

Connect remote agents through the standard MCP 2025-11-25 Streamable HTTP endpoint. Use OAuth 2.1 Authorization Code with PKCE, or an API key for compatibility.

POST https://api.nexscope.ai/mcp
MCP-Protocol-Version: 2025-11-25
Content-Type: application/json

Authentication

OAuth clients request the mcp:tools scope. The endpoint's 401 response advertises protected-resource metadata for authorization discovery.

Step 2 of 2 · Call the tool

Call a tool

{
  "jsonrpc": "2.0",
  "id": "tool-call-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_ai_model_scene_background_replacement",
    "arguments": {
      "genOriRes": false,
      "imageUrl": "https://example.com/model-reference.jpg",
      "outputNum": 1,
      "realModel": true,
      "scenePrompt": "bright studio showroom",
      "sceneStrength": 0.7
    }
  }
}

Legacy MCP v1

Existing API-key clients can continue using the compatibility endpoint. New integrations should use MCP v2.

GET / POST /mcp/legacy

Online test

Execute the current API with your API key and JSON payload. Online tests use this site's configured API environment; the Endpoint and copyable examples use the public integration address.

Create an image

Add at least oneRequired.Scene Reference or Scene Description.

Source image*Required

Public URL of the model image. The image must be up to 20 MB and between 385 and 8192 pixels in both width and height.

JPG, PNG, WEBP · 1 image · 20 MB · 385–8192 px per side

0/1

Scene Reference

Optional public URL of the target scene reference.

JPG, PNG, WEBP · 1 image · 20 MB

0/1

Mask ImageOptional

Optional model segmentation mask URL.

JPG, PNG, WEBP · 1 image · 20 MB

0/1

Image settings

Scene Description

Optional text prompt describing the target scene.

Scene Strength

Scene reference strength from 0 to 1. Defaults to 0.7.

Keep Original Resolution

Whether to generate the original resolution. Defaults to false.

Realistic Style

Whether to prefer realistic model rendering.

Images

API keys require an active subscription. Trial credits don't include API access. View plans.

Usage estimate unavailable

Final credits are shown with your result.

Preview

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Recent generations

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Test with an API key or MCP

Try it

Send a real request with the same contract shown in the reference.

Endpoint

/ai/modelSceneBackgroundReplacement

Task result endpoint

/ai/modelSceneBackgroundReplacement/tasks/{taskId}

MCP method

nexscope_ai_model_scene_background_replacement

API key*

JSON payload*

cURL

curl -X POST \
  https://api.nexscope.ai/ai/modelSceneBackgroundReplacement \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "genOriRes": false, "imageUrl": "", "outputNum": 1, "realModel": true, "scenePrompt": "bright studio showroom", "sceneStrength": 0.7 }'

Response

No response yet. Run the request to see the response here.

Task result

Results are checked automatically after Run request. You can also enter a task ID and check it manually; completed resources use Nexscope URLs and show actual charged credits.

Task ID

Result response

No task result yet. Query the task to see the generated output here.

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