Extract a reusable text prompt from an input image.
https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/runMCP · nexscope_image_captioningChoose an integration method
Extract a reusable text prompt from an input image. Review authentication, request parameters, response fields, and MCP usage.
https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/runnexscope_image_captioningStep 1 of 3 · Authenticate
All run endpoints require a user API key. Send it as a bearer token in the Authorization header.
Authorization: Bearer nk-xxxxxxxxxxxxxxxxxStep 2 of 3 · Send a request
https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/runExtract descriptive prompts or selling-point text from one or more images.
Replace YOUR_API_KEY, then run this command in your terminal.
curl -X POST 'https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/run' \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"type": 71,
"imageUrlList": [
"https://example.com/product.jpg"
],
"keyword": "phone case",
"provider": "API_PRE_POINT"
}'Step 3 of 3 · Inspect the result
Read code for the request status and data for the result. Open the parameter and response reference for the full field definitions.
| 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. |
https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/runSend a JSON request to execute this API and receive the documented response payload.
| Method | POST |
| Path | https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/run |
| Auth | Bearer API key |
| Content-Type | application/json |
Step 1 of 2 · Connect your MCP client
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/jsonOAuth 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
{
"jsonrpc": "2.0",
"id": "tool-call-1",
"method": "tools/call",
"params": {
"name": "nexscope_image_captioning",
"arguments": {
"type": 71,
"imageUrlList": [
"https://example.com/product.jpg"
],
"keyword": "phone case",
"provider": "API_PRE_POINT"
}
}
}Existing API-key clients can continue using the compatibility endpoint. New integrations should use MCP v2.
GET / POST /api/skill-api/v1/mcpExecute the current API with your API key and JSON payload.
Send a real request with the same contract shown in the reference.
https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/runhttps://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/tasks/{taskId}nexscope_image_captioningcurl -X POST \
https://api.nexscope.ai/api/skill-api/v1/skills/image-captioning/run \
-H "Authorization: Bearer nk-..." \
-H "Content-Type: application/json" \
-d '{ "type": 71, "imageUrlList": [], "keyword": "phone case", "provider": "API_PRE_POINT" }'No response yet. Run the request to see the response here.
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.
No task result yet. Query the task to see the generated output here.
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| Name | Type | Required | Description |
|---|---|---|---|
type | integer | required | Analysis type. Available options
Example: 71 |
imageUrlList | array | required | Public image URLs used for analysis. Provide no more than 6 images for modes that accept multiple images. Example: [
"https://example.com/product.jpg"
] |
keyword | string | optional | Optional keyword context. Example: phone case |
provider | string | optional | Analysis provider. Available options
Example: API_PRE_POINT |
refVideoUrl | string | conditional | Reference video URL. Required when type is 89. Example: https://example.com/reference-video.mp4 |
saleCountry | string | optional | Target sale country code. Example: US |
targetLanguage | string | optional | Target language for generated text. Used by video-reclone analysis. Example: English |
duration | integer | optional | Target duration in seconds. Used by video-reclone analysis. Example: 15 |
{
"type": 71,
"imageUrlList": [
"https://example.com/product.jpg"
],
"keyword": "phone case",
"provider": "API_PRE_POINT"
}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
}| 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. |
| 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. |
| 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. |
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.
| 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. |
| Name | Type | Required | Description |
|---|---|---|---|
data.result | null | required | Result value used by this API operation. |
| Name | Type | Required | Description |
|---|---|---|---|
data | null | required | Data value used by this API operation. |