Use RunComfy's API to run wan-ai/wan-2-6/image-to-image. For accepted inputs and outputs, see the model's schema.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/wan-ai/wan-2-6/image-to-image \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"prompt": "On the left sits a monster, and on the right sits another monster. The two of them are like radio hosts, wearing headphones and sitting in a recording studio, discussing a topic.",
"image_urls": [
"https://playgrounds-storage-public.runcomfy.net/tools/7305/media-files/input-1-1.png",
"https://playgrounds-storage-public.runcomfy.net/tools/7305/media-files/input-1-2.png"
]
}'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/wan-ai/wan-2-6/image-to-image \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"prompt": "On the left sits a monster, and on the right sits another monster. The two of them are like radio hosts, wearing headphones and sitting in a recording studio, discussing a topic.",
"image_urls": [
"https://playgrounds-storage-public.runcomfy.net/tools/7305/media-files/input-1-1.png",
"https://playgrounds-storage-public.runcomfy.net/tools/7305/media-files/input-1-2.png"
]
}'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",
"required": [
"prompt",
"image_urls"
],
"properties": {
"prompt": {
"title": "Prompt",
"description": "Text prompt describing the desired image. Should be less than 2000 characters.",
"type": "string",
"default": "On the left sits a monster, and on the right sits another monster. The two of them are like radio hosts, wearing headphones and sitting in a recording studio, discussing a topic."
},
"image_urls": {
"title": "Reference Images",
"description": "Reference images for editing. Order matters: reference as 'image 1', 'image 2', 'image 3' in prompt.",
"type": "array",
"items": {
"type": "string",
"format": "image_uri"
},
"minItems": 1,
"maxItems": 3,
"default": [
"https://playgrounds-storage-public.runcomfy.net/tools/7305/media-files/input-1-1.png",
"https://playgrounds-storage-public.runcomfy.net/tools/7305/media-files/input-1-2.png"
],
"validations": [
{
"validation_rule": "file_size_mb<",
"validation_value": 10,
"validation_error": "File size must be less than 10 MB."
},
{
"validation_rule": "width_pixels>",
"validation_value": 384,
"validation_error": "Each image side must be at least 384 pixels."
},
{
"validation_rule": "height_pixels>",
"validation_value": 384,
"validation_error": "Each image side must be at least 384 pixels."
},
{
"validation_rule": "width_pixels<",
"validation_value": 5000,
"validation_error": "Each image side must be at most 5000 pixels."
},
{
"validation_rule": "height_pixels<",
"validation_value": 5000,
"validation_error": "Each image side must be at most 5000 pixels."
}
]
},
"negative_prompt": {
"title": "Negative Prompt",
"description": "Content to avoid in the generated image.",
"type": "string",
"default": "low resolution, error, worst quality, low quality, deformed, extra fingers",
"maxLength": 500
},
"image_size": {
"title": "Aspect Ratio (W:H)",
"description": "",
"type": "string",
"enum": [
"1024*1024 (1:1)",
"800*1200 (2:3)",
"1200*800 (3:2)",
"960*1280 (3:4)",
"1280*960 (4:3)",
"720*1280 (9:16)",
"1280*720 (16:9)",
"1344*576 (21:9)"
],
"default": "1024*1024 (1:1)"
},
"seed": {
"title": "Seed",
"description": "Random seed for reproducibility. Same seed produces more consistent results.",
"type": "integer",
"minimum": 0,
"maximum": 2147483647,
"default": 0
},
"prompt_extend": {
"title": "Magic Prompt",
"description": "Whether to extend the prompt. If enabled, the prompt will be extended with a magic prompt.",
"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.