IMPORTANT ASYNCHRONOUS TASK WORKFLOW
- Call this MCP generation tool once and read taskId from structuredContent.
- Do not call the generation tool again while the task is PENDING or RUNNING.
- Wait at least 5 seconds, then call nexscope_media_task_result with skillSlug set to hailuo-2-3-video-generation, the exact taskId, and the same bearer API key. While the task remains PENDING or RUNNING, use 5, 10, 20, and 30-second progressive backoff. Never query more often than once every 5 seconds.
- Stop querying when the task succeeds or fails. On success, return the final Nexscope resource URLs and the returned count as the actual charged credits.
- Never invent a taskId and never expose internal provider names or provider resource URLs.
Video Generation Models
Hailuo 2.3 Video Generation MCP Tool
Generate a Hailuo 2.3 video from a required primary image; the aspect ratio is adaptive. The model is fixed by this API, so videoType must not be supplied in the request.
MCP tool name
nexscope_hailuo_2_3_video_generationLegacy MCP endpoint
/api/skill-api/v1/mcpJSON-RPC method
tools/callAuthentication
Send the user API key as a bearer token on every MCP JSON-RPC request.
Authorization: Bearer nk-xxxxxxxxxxxxxxxxxIf 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": "hailuo-2-3-video-generation-1",
"method": "tools/call",
"params": {
"name": "nexscope_hailuo_2_3_video_generation",
"arguments": {
"videoTime": 6,
"prompt": "Keep the product consistent while the camera slowly orbits and highlights material details.",
"imageUrl": "https://example.com/source-image.jpg",
"resolution": "1080p"
}
}
}Legacy endpoint
POST /api/skill-api/v1/mcpCanonical detail URL
https://www.nexscope.ai/mcp-map/hailuo-2-3-video-generationAsynchronous 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_resultwith 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": "hailuo-2-3-video-generation-result-1",
"method": "tools/call",
"params": {
"name": "nexscope_media_task_result",
"arguments": {
"skillSlug": "hailuo-2-3-video-generation",
"taskId": "TASK_ID_FROM_THE_GENERATION_RESULT"
}
}
}REST fallback
GET https://api.nexscope.ai/api/skill-api/v1/skills/hailuo-2-3-video-generation/tasks/{taskId}Arguments
| Name | Type | Required | Meaning |
|---|---|---|---|
videoTime | integer | required | Video duration in seconds. Available options
Example: 6 |
prompt | string | required | Video generation prompt describing motion, subject consistency, camera movement, and the ecommerce scene. Maximum 2000 characters. Example: Keep the product consistent while the camera slowly orbits and highlights material details. |
promptOptimizer | boolean | optional | Whether Nexscope should optimize the video prompt before generation. Defaults to false. Example: false |
isPro | boolean | optional | Whether to use the model's professional generation mode when supported. Defaults to false. Example: false |
resolution | string | required | Output resolution. Available options
Example: 1080p |
imageUrl | string | required | Public URL of the required first-frame or primary reference image. Example: https://example.com/source-image.jpg |
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.taskId | string | required | Task id 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. |
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. |
Examples
Example arguments
{
"videoTime": 6,
"prompt": "Keep the product consistent while the camera slowly orbits and highlights material details.",
"imageUrl": "https://example.com/source-image.jpg",
"resolution": "1080p"
}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
}