Use RunComfy's API to run minimax/minimax-h3-max/image-to-video. For accepted inputs and outputs, see the model's schema.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/minimax/minimax-h3-max/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"image_url": "https://playgrounds-storage-public.runcomfy.net/tools/7451/media-files/input.webp",
"prompt": "Luxury perfume commercial: a woman in a flowing ivory silk gown stands on a wind-swept cliff above a cold Atlantic shoreline at magic hour. Fabric and hair whip sideways as the camera slowly orbits her silhouette against a molten orange sky. Photoreal, cinematic anamorphic. Audio: soft wind, distant surf, a single low cinematic swell. No cars, no vehicles, no text, no watermark.",
"prompt_expansion_mode": "balanced"
}'Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.
Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/minimax/minimax-h3-max/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"image_url": "https://playgrounds-storage-public.runcomfy.net/tools/7451/media-files/input.webp",
"prompt": "Luxury perfume commercial: a woman in a flowing ivory silk gown stands on a wind-swept cliff above a cold Atlantic shoreline at magic hour. Fabric and hair whip sideways as the camera slowly orbits her silhouette against a molten orange sky. Photoreal, cinematic anamorphic. Audio: soft wind, distant surf, a single low cinematic swell. No cars, no vehicles, no text, no watermark.",
"prompt_expansion_mode": "balanced"
}'Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").
curl --request GET \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
--header "Authorization: Bearer <token>"Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.
curl --request GET \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
--header "Authorization: Bearer <token>"Cancel a queued job by request_id; in-progress jobs cannot be cancelled.
curl --request POST \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
--header "Authorization: Bearer <token>"Provide a publicly reachable HTTPS URL. Ensure the host allows server-side fetches (no login/cookies required) and isn't rate-limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre-signed URLs for private assets.
{
"type": "object",
"title": "Input schema",
"required": [
"image_url",
"prompt",
"prompt_expansion_mode"
],
"properties": {
"image_url": {
"title": "First Frame Image",
"description": "URL of the image to use as the first frame. Output aspect ratio follows this image.",
"type": "string",
"default": "https://playgrounds-storage-public.runcomfy.net/tools/7451/media-files/input.webp"
},
"prompt": {
"title": "Prompt",
"description": "Text prompt for video generation: motion, camera, lighting, style, and optional audio.",
"type": "string",
"default": "Luxury perfume commercial: a woman in a flowing ivory silk gown stands on a wind-swept cliff above a cold Atlantic shoreline at magic hour. Fabric and hair whip sideways as the camera slowly orbits her silhouette against a molten orange sky. Photoreal, cinematic anamorphic. Audio: soft wind, distant surf, a single low cinematic swell. No cars, no vehicles, no text, no watermark."
},
"end_image_url": {
"title": "Last Frame Image (optional)",
"description": "Optional URL of the image to use as the last frame for first-to-last keyframe generation.",
"type": "string",
"default": ""
},
"duration": {
"title": "Duration (seconds)",
"description": "The duration of the video in seconds.",
"type": "integer",
"default": 8,
"minimum": 5,
"maximum": 15
},
"resolution": {
"title": "Resolution",
"description": "The native generation resolution of the video.",
"type": "string",
"enum": [
"480p",
"768p"
],
"default": "768p"
},
"prompt_expansion_mode": {
"title": "Prompt Expansion Mode",
"description": "How much effort to spend rewriting the prompt before generation. balanced returns quickly; quality spends longer on a richer prompt.",
"type": "string",
"enum": [
"balanced",
"quality"
],
"default": "balanced"
},
"seed": {
"title": "Seed",
"description": "Random seed. A random seed is selected when omitted. Use -1 for random.",
"type": "integer",
"default": -1
},
"enable_safety_checker": {
"title": "Enable Safety Checker",
"description": "If set to true, the safety checker will be enabled.",
"type": "boolean",
"default": true
}
}
}{
"output": {
"type": "object",
"properties": {
"image": {
"type": "string",
"format": "uri",
"description": "single image URL"
},
"video": {
"type": "string",
"format": "uri",
"description": "single video URL"
},
"images": {
"type": "array",
"description": "multiple image URLs",
"items": {
"type": "string",
"format": "uri"
}
},
"videos": {
"type": "array",
"description": "multiple video URLs",
"items": {
"type": "string",
"format": "uri"
}
}
}
}
}RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.