Use RunComfy's API to run minimax/minimax-h3/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/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"image": "https://playgrounds-storage-public.runcomfy.net/tools/7393/media-files/ref-promo.webp",
"prompt": "A slow push-in as the subject turns toward the light; loose strands of hair lift in the breeze, dust motes drift through a warm shaft of sun, and the background falls softly out of focus. Cinematic pacing, natural movement, steady handheld feel.",
"duration": 5,
"resolution": "768p"
}'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/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"image": "https://playgrounds-storage-public.runcomfy.net/tools/7393/media-files/ref-promo.webp",
"prompt": "A slow push-in as the subject turns toward the light; loose strands of hair lift in the breeze, dust motes drift through a warm shaft of sun, and the background falls softly out of focus. Cinematic pacing, natural movement, steady handheld feel.",
"duration": 5,
"resolution": "768p"
}'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",
"prompt",
"duration",
"resolution"
],
"properties": {
"image": {
"title": "Image",
"description": "First-frame image. Each side must be 256-5760 pixels with an aspect ratio between 0.4 and 2.5.",
"type": "string",
"default": "https://playgrounds-storage-public.runcomfy.net/tools/7393/media-files/ref-promo.webp"
},
"prompt": {
"title": "Prompt",
"description": "Description of the motion and scene. 1-7000 characters.",
"type": "string",
"default": "A slow push-in as the subject turns toward the light; loose strands of hair lift in the breeze, dust motes drift through a warm shaft of sun, and the background falls softly out of focus. Cinematic pacing, natural movement, steady handheld feel."
},
"last_image": {
"title": "Last Image",
"description": "Optional last-frame image used to guide the ending of the video.",
"type": "string"
},
"duration": {
"title": "Duration",
"description": "Length of the generated video in seconds.",
"type": "integer",
"minimum": 4,
"maximum": 15,
"default": 5
},
"resolution": {
"title": "Resolution",
"description": "Output video resolution. Choose 768p or 2k.",
"type": "string",
"enum": [
"768p",
"2k"
],
"default": "768p"
}
}
}{
"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.