GPT Image 2.5 Sunburst

REST API and MCP service documentation generated from server-side API definitions. Responses use the shared code, msg, and data envelope.

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Image Generation Models

API overview

Create and edit ecommerce visuals with GPT Image 2.5 Sunburst using precise prompt following, broad visual styles, reliable text, and 1K, 2K, or 4K output.

Try this API

Endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/run

MCP method

nexscope_gpt_image_2_5_generation

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 .

POSThttps://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/run

Run an API

Create and edit ecommerce visuals with precise instruction following, broad visual-style support, world-knowledge grounding, and reliable text rendering through the GPT Image 2.5 Sunburst route.

Slug	`gpt-image-2-5-generation`
Headers	`Authorization: Bearer nk-...` `Content-Type: application/json`
Request body	API-specific JSON object.
Response body	Platform envelope: code, msg, data, ts, time, cost, traceId. Inspect data.status for asynchronous completion.

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.

Example request

curl -X POST https://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/run \
  -H "Authorization: Bearer nk-xxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{   "imageUrls": [],   "prompt": "Keep the product consistent and generate a clean white-background ecommerce hero image.",   "outputNum": 1,   "resolution": "2K",   "aspectRatio": "1:1",   "quality": "medium" }'

All categories/ Image Generation Models

POSThttps://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/run

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/api/skill-api/v1/skills/gpt-image-2-5-generation/run`
Auth	`Bearer API key`
Content-Type	`application/json`

Request body

Name	Type	Required	Description
`imageUrls`	`array`	optional	Optional public reference image URLs. Omit this field for text-to-image generation, or provide references for image-to-image generation. When supplied, provide 1 to 10 JPG, PNG, or WEBP images; each image must not exceed 20 MB. Example: []
`prompt`	`string`	required	Generation prompt describing the target image, scene, composition, style, and constraints. Maximum 5000 characters. Example: Keep the product consistent and generate a clean white-background ecommerce hero image.
`outputNum`	`integer`	optional	Number of images to generate. Valid range: 1 to 10; defaults to 1. Example: 1
`resolution`	`string`	optional	Output resolution. Available options `1K` `2K` `4K; defaults to 2K` Example: 2K
`aspectRatio`	`string`	optional	Output aspect ratio. Available options `1:1` `3:4` `4:3` `2:3` `3:2` `9:16` `16:9` `4:5` `5:4` `21:9` `9:21` Example: 1:1
`quality`	`string`	optional	GPT Image quality. Defaults to medium. Available options `low` `medium` `high` `xhigh` `max` Example: medium

Request example

{
  "imageUrls": [],
  "prompt": "Keep the product consistent and generate a clean white-background ecommerce hero image.",
  "outputNum": 1,
  "resolution": "2K",
  "aspectRatio": "1:1",
  "quality": "medium"
}

Response body

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.status`	`string`	required	Status value used by this API operation. Allowed: PENDING, RUNNING, SUCCEEDED, FAILED, TIMEOUT
`data.result`	`any`	required	Result value used by this API operation.
`data.taskId`	`string`	required	Task id value used by this API operation.

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.

Response example

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

{
  "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
}

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.

Data source, freshness, and limitations

Source, freshness, coverage, rate limits, and estimation notes are not specified in this API definition unless they appear in the request or response field documentation above. Do not assume official marketplace data or real-time freshness when it is not explicitly documented.

Related APIs

Nano Banana Image Generation

Generate ecommerce images with the fixed Nano Banana model from reference images and a prompt, with documented task-result and MCP workflows.

Nano Banana Pro Image Generation

Generate higher-resolution ecommerce images with the fixed Nano Banana Pro model, reference images, prompts, and asynchronous task results.

Nano Banana 2 Image Generation

Generate ecommerce images with the fixed Nano Banana 2 model from reference assets and prompts, with documented asynchronous result retrieval.

Nano Banana 2 Lite Image Generation

Generate ecommerce images with the fixed Nano Banana 2 Lite model from reference assets and prompts, then retrieve completed task results.

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/api/skill-api/v2/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.

Call a tool

{
  "jsonrpc": "2.0",
  "id": "tool-call-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_gpt_image_2_5_generation",
    "arguments": {
      "imageUrls": [],
      "prompt": "Keep the product consistent and generate a clean white-background ecommerce hero image.",
      "outputNum": 1,
      "resolution": "2K",
      "aspectRatio": "1:1",
      "quality": "medium"
    }
  }
}

Legacy MCP v1

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

GET / POST /api/skill-api/v1/mcp

Online test

Execute the current API with your API key and JSON payload.

Try it

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

Endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/run

Task result endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/tasks/{taskId}

MCP method

nexscope_gpt_image_2_5_generation

API key*

JSON payload*

cURL

curl -X POST \
  https://api.nexscope.ai/api/skill-api/v1/skills/gpt-image-2-5-generation/run \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "imageUrls": [], "prompt": "Keep the product consistent and generate a clean white-background ecommerce hero image.", "outputNum": 1, "resolution": "2K", "aspectRatio": "1:1", "quality": "medium" }'

Response

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

Task result

Results are checked automatically after Run API. 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.