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Midjourney
Blend (Image to Image)
Submit images to the POST /mj/submit/blend endpoint to blend one or more inputs into a new Midjourney-style image with CometAPI.
POST
/
mj
/
submit
/
blend
Blend (image -> image)
curl --request POST \
--url https://api.cometapi.com/mj/submit/blend \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"base64Array": [
"data:image/png;base64,xxx1",
"data:image/png;base64,xxx2"
]
}
'{
"code": 123,
"description": "<string>",
"properties": {},
"result": 123
}Use this endpoint to blend 2 to 5 source images into a new Midjourney composition. It is a direct entry point and does not require a prior imagine task.
Before you call it
- Prepare 2 to 5 source images
- Keep the first test small and skip extra account-routing options unless you need them
- Save the returned task id, because blending is still asynchronous
Task flow
Submit the blend task
Send the source images through the blend endpoint and store the returned task id.
Poll the task
Use Fetch Single Task until the task reaches a terminal state.
Continue from the result
When action buttons appear, use Action for upscale, variation, or other follow-up steps.
Authorizations
Bearer token authentication. Use your CometAPI key.
Body
application/json
Two or more base64-encoded images to blend. Each item should be a data URI such as data:image/png;base64,xxx.
Output aspect ratio.
Available options:
PORTRAIT, SQUARE, LANDSCAPE Webhook URL to receive task status updates. Falls back to your account-level webhook if omitted.
Custom state string. Returned as-is in the task result and webhook callback for your own tracking.
Bot type to use. MID_JOURNEY for Midjourney (default), NIJI_JOURNEY for Niji.
Available options:
MID_JOURNEY, NIJI_JOURNEY ⌘I
Blend (image -> image)
curl --request POST \
--url https://api.cometapi.com/mj/submit/blend \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"base64Array": [
"data:image/png;base64,xxx1",
"data:image/png;base64,xxx2"
]
}
'{
"code": 123,
"description": "<string>",
"properties": {},
"result": 123
}