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POST
/
mj
/
submit
/
imagine
Create a Midjourney imagine task
curl --request POST \
  --url https://api.cometapi.com/mj/submit/imagine \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "a paper boat floating on calm water at sunrise --v 6.1"
}
'
{
  "code": 1,
  "description": "提交成功",
  "result": "1773314942177684",
  "properties": {
    "discordChannelId": "5e6ca8e1f40e4de6",
    "discordInstanceId": "5e6ca8e1f40e4de6"
  }
}

Documentation Index

Fetch the complete documentation index at: https://apidoc.cometapi.com/llms.txt

Use this file to discover all available pages before exploring further.

Use this endpoint to start the main Midjourney workflow. Every later step, including upscale, variation, and custom zoom, begins with a successful imagine task.

What the first response gives you

  • result is the task id you will poll next
  • code can still be a success code even when it is not HTTP-style 200

Core workflow

1

Submit the imagine task

Send the prompt and store the returned task id.
2

Poll until the task finishes

Use Fetch Single Task until the task reaches SUCCESS, MODAL, or FAILURE.
3

Continue with post-processing

When buttons appear, use Action for upscale, variation, reroll, zoom, and similar follow-up operations.

Optional video prompt pattern

If you want motion from a source image, add an image URL plus Midjourney video flags in the prompt, such as --video and --motion.

Authorizations

Authorization
string
header
required

Bearer token authentication. Use your CometAPI key.

Body

application/json
prompt
string
required

Text prompt for the generation. Supports standard Midjourney parameters such as --v, --ar, --stylize, etc.

Example:

"a paper boat floating on calm water at sunrise --v 6.1"

botType
enum<string>
default:MID_JOURNEY

Bot type to use. MID_JOURNEY for Midjourney (default), NIJI_JOURNEY for Niji.

Available options:
MID_JOURNEY,
NIJI_JOURNEY
accountFilter
object

Filter which Midjourney account modes may be used for this task.

base64Array
string[]

Base64-encoded reference images. Each item should be a data URI such as data:image/png;base64,xxx.

state
string

Custom state string. Returned as-is in the task result and webhook callback for your own tracking.

Response

200 - application/json

Task accepted.

code
integer
required
description
string
required
result
string
required

Task id returned after submission.

properties
object