Use RunComfy's API to run minimax/minimax-h3-open/reference-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-open/reference-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"prompt": "Use the woman from the reference image and keep her identity, hair, and emerald-green blazer. [0s-3s] she stands in a rainy neon alley and slowly lifts her gaze to camera as sign light flickers across her face. [3s-6s] she turns her shoulder and a faint smile forms while the camera pushes in and holds. Camera: slow dolly-in then hold, no cuts. Audio: soft night rain, distant city hum, low synth pad. No extra people, no text, no watermark.",
"reference_images": [
"https://playgrounds-storage-public.runcomfy.net/tools/7412/media-files/ref-promo.webp"
]
}'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-open/reference-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"prompt": "Use the woman from the reference image and keep her identity, hair, and emerald-green blazer. [0s-3s] she stands in a rainy neon alley and slowly lifts her gaze to camera as sign light flickers across her face. [3s-6s] she turns her shoulder and a faint smile forms while the camera pushes in and holds. Camera: slow dolly-in then hold, no cuts. Audio: soft night rain, distant city hum, low synth pad. No extra people, no text, no watermark.",
"reference_images": [
"https://playgrounds-storage-public.runcomfy.net/tools/7412/media-files/ref-promo.webp"
]
}'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": [
"prompt",
"reference_images"
],
"properties": {
"prompt": {
"title": "Prompt",
"description": "Describe the scene, motion, camera, and an Audio: line. Name what each reference supplies (identity, style, motion, or voice).",
"type": "string",
"default": "Use the woman from the reference image and keep her identity, hair, and emerald-green blazer. [0s-3s] she stands in a rainy neon alley and slowly lifts her gaze to camera as sign light flickers across her face. [3s-6s] she turns her shoulder and a faint smile forms while the camera pushes in and holds. Camera: slow dolly-in then hold, no cuts. Audio: soft night rain, distant city hum, low synth pad. No extra people, no text, no watermark."
},
"reference_images": {
"title": "Reference Images",
"description": "Up to 9 reference image URLs guiding subject, product, style, or composition. At least one reference image or video is required.",
"type": "array",
"default": [
"https://playgrounds-storage-public.runcomfy.net/tools/7412/media-files/ref-promo.webp"
],
"items": {
"type": "string",
"format": "image_uri"
},
"maxItems": 9
},
"reference_videos": {
"title": "Reference Videos",
"description": "Up to 3 reference video URLs guiding movement or pacing. Available at 480p output only; their soundtracks are used automatically.",
"type": "array",
"items": {
"type": "string",
"format": "video_uri"
},
"maxItems": 3
},
"reference_audios": {
"title": "Reference Audios",
"description": "Up to 3 reference audio URLs (each trimmed to 15s). Cannot be provided without an image or video reference.",
"type": "array",
"items": {
"type": "string",
"format": "audio_uri"
},
"maxItems": 3
},
"aspect_ratio": {
"title": "Aspect Ratio",
"description": "Output aspect ratio.",
"type": "string",
"enum": [
"21:9",
"16:9",
"4:3",
"1:1",
"3:4",
"9:16",
"9:21"
],
"default": "16:9"
},
"resolution": {
"title": "Resolution",
"description": "Output resolution. 480p is faster/cheaper; 768p is the native canvas. Reference videos require 480p.",
"type": "string",
"enum": [
"480p",
"768p"
],
"default": "480p"
},
"duration": {
"title": "Duration",
"description": "Length of the generated video in seconds (5-15).",
"type": "integer",
"minimum": 5,
"maximum": 15,
"default": 5
},
"seed": {
"title": "Seed",
"description": "Fixed seed for reproducible results. Use -1 for a random seed.",
"type": "integer",
"default": -1
}
}
}{
"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.