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Multimodal AI

Smart Image Outpainting API

Generate an expanded image around the original content using target width, height, and optional prompt.

MCP tool name

nexscope_smart_image_outpainting

Legacy MCP endpoint

/api/skill-api/v1/mcp

JSON-RPC method

tools/call

Authentication

Send the user API key as a bearer token on every MCP JSON-RPC request.

Authorization: Bearer nk-xxxxxxxxxxxxxxxxx

If authentication is missing or invalid, ask the user to open API Access and copy a valid key before calling this tool.

Call this MCP tool

Use tools/call with the MCP tool name below. The arguments object should match the table on this page.

{
  "jsonrpc": "2.0",
  "id": "smart-image-outpainting-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_smart_image_outpainting",
    "arguments": {
      "imageUrl": "https://example.com/product.jpg",
      "width": 1200,
      "height": 900,
      "prompt": "extend the clean studio background",
      "outputNum": 1
    }
  }
}

Legacy endpoint

POST /api/skill-api/v1/mcp

Canonical detail URL

https://www.nexscope.ai/mcp-map/smart-image-outpainting

Asynchronous task workflow

This capability uses a create-and-query flow. Creating the task and retrieving its final generated resources are two connected requests.

1. Create onceCall the MCP tool once and keep the returned taskId.
2. Query with backoffCall nexscope_media_task_result with this skill slug and task ID. Wait at least 5 seconds first; while pending or running, back off at 5, 10, 20, then 30-second intervals.
3. Use final resultStop at a terminal status. Successful results contain Nexscope resource URLs and the actual charged-credit count.

MCP task result call

{
  "jsonrpc": "2.0",
  "id": "smart-image-outpainting-result-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_media_task_result",
    "arguments": {
      "skillSlug": "smart-image-outpainting",
      "taskId": "TASK_ID_FROM_THE_GENERATION_RESULT"
    }
  }
}

REST fallback

GET https://api.nexscope.ai/api/skill-api/v1/skills/smart-image-outpainting/tasks/{taskId}

Arguments

Name	Type	Required	Description
`imageUrl`	`string`	required	Public URL of the image to expand. The image must be between 300 and 4096 pixels in both width and height, and its width-to-height ratio must be between 0.4 and 2.5. Example: https://example.com/product.jpg
`width`	`integer`	required	Target output width in pixels. Example: 1200
`height`	`integer`	required	Target output height in pixels. Example: 900
`prompt`	`string`	optional	Optional prompt describing the extended scene. Example: extend the clean studio background
`outputNum`	`integer`	optional	Number of images to generate, from 1 to 4. Defaults to 1. Example: 1

Response fields

Treat structuredContent as the programmatic API response payload.

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

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.

Any of option 1

Examples

Example arguments

{
  "imageUrl": "https://example.com/product.jpg",
  "width": 1200,
  "height": 900,
  "prompt": "extend the clean studio background",
  "outputNum": 1
}

Example structuredContent

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

Smart Image Outpainting API

Smart Image Outpainting API

Authentication

Call this MCP tool

Asynchronous task workflow

Arguments

Response fields

Any of option 1 — requires taskId, status, result

Any of option 1

Examples

Example arguments

Example structuredContent

Any of option 2

Any of option 2

IMPORTANT ASYNCHRONOUS TASK WORKFLOW

Smart Image Outpainting API

IMPORTANT ASYNCHRONOUS TASK WORKFLOW

Smart Image Outpainting API

Authentication

Call this MCP tool

Asynchronous task workflow

Arguments

Response fields

Any of option 1 — requires taskId, status, result

Any of option 1

Examples

Example arguments

Example structuredContent

Related MCP tools

Any of option 2

Any of option 2