Hailuo AI Video Generator API documentation
Generate videos with Hailuo AI Video Generator (MiniMax). Supports both text and image input modes.
Endpoints
| Contract item | Value |
|---|---|
| Capability | hailuo-ai-video-generator |
| Submit | POST https://vidmage.ai/api/v1/hailuo-ai-video-generator/submit |
| Query | POST https://vidmage.ai/api/v1/hailuo-ai-video-generator/query |
| Task identifier | taskId |
| Result field | videoUrl |
Authenticate with Authorization: Bearer YOUR_API_KEY. Save the task identifier and query the same capability. Use a stable Idempotency-Key for submission retries.
Product guide: Hailuo API
Parameters and input rules
| Field | Type | Required | Default | Meaning and limits |
|---|---|---|---|---|
prompt | string | No | Not specified | Text prompt describing the video to generate (max 2000 chars). Optional only in provider modes whose image input fully defines the generation. Maximum characters: 2000 |
imageUrl | string | No | Not specified | Optional input image URL. When provided, the task runs in image-to-video mode. |
duration | string | No | "6" | Video duration in seconds. Values: "6", "10" |
enablePromptExpansion | boolean | No | true | Automatically expand and refine the prompt before generation. |
text to video
These are public VidMage field names. The server maps them to provider fields. Input media selects the mode; use its limits together with the parameter table.
| Control | Mode-specific rule |
|---|---|
prompt | Required; 1–2000 characters. |
duration | JSON string. Values: "6", "10". Default: 6. |
aspectRatio | Not used in this mode. |
resolution | Not used in this mode. |
enablePromptExpansion | Automatically expand and refine the prompt before generation. Default: true |
image to video
These are public VidMage field names. The server maps them to provider fields. Input media selects the mode; use its limits together with the parameter table.
| Control | Mode-specific rule |
|---|---|
prompt | Optional; 0–2000 characters. |
duration | JSON string. Values: "6", "10". Default: 6. |
aspectRatio | Not used in this mode. |
resolution | Not used in this mode. |
imageUrl | Formats: jpg, png. |
enablePromptExpansion | Automatically expand and refine the prompt before generation. Default: true |
Example request
{
"prompt": "Macro shot of morning dew rolling across a green leaf, shallow depth of field and gentle camera movement",
"duration": "6",
"enablePromptExpansion": true
}# Set VIDMAGE_IDEMPOTENCY_KEY to a unique value for this task; preserve it for transport retries.
curl -X POST "https://vidmage.ai/api/v1/hailuo-ai-video-generator/submit" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Idempotency-Key: ${VIDMAGE_IDEMPOTENCY_KEY}" \
-H "Content-Type: application/json" \
-d '{"prompt":"Macro shot of morning dew rolling across a green leaf, shallow depth of field and gentle camera movement","duration":"6","enablePromptExpansion":true}'
# -> { "success": true, "taskId": "...", "creditsConsumed": ... }Task results and recovery
URL of the generated video. Read videoUrl from the completed query response. Preserve taskId while the task is running.
curl -X POST "https://vidmage.ai/api/v1/hailuo-ai-video-generator/query" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{ "taskId": "TASK_ID_FROM_SUBMIT" }'
# -> { "success": true, "data": { "status": "...", "videoUrl": "https://..." } }Submission and task queries report the available task and usage information. A timeout is not a confirmed failure. Recover the existing task instead of resubmitting.
For face selection and error recovery, follow Task lifecycle. MCP uses the normalized taskId argument in get_task_result, including capabilities whose REST identifier is requestId.
Credits
| Component / option | Rate | Minimum |
|---|---|---|
| Base rate | 10 credits / second | — |
Base charge = duration × the selected resolution rate.
Use the Playground or the MCP credit estimator for your exact inputs. Credits and billing.