> ## Documentation Index
> Fetch the complete documentation index at: https://docs.krea.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Krea 2 Medium
> Best for expressive illustrations.
## Pricing
Fixed API prices in USD.
| K2 Billing Tier | Price |
| ---------------- | ------: |
| Text to image | \$0.03 |
| Style references | \$0.035 |
| Moodboards | \$0.04 |
These aliases are accepted for compatibility only and are not shown in the request schema.
| Deprecated | Use instead | Accepted until |
| ---------------- | ------------------------ | -------------- |
| `presetStyles` | `styles` | 2026-06-19 |
| `imageStyleRefs` | `image_style_references` | 2026-06-19 |
## OpenAPI
````yaml https://api.krea.ai/openapi.json post /generate/image/krea/krea-2/medium
openapi: 3.1.0
info:
title: Krea API
version: v1
servers:
- url: https://api.krea.ai
description: Krea API
security:
- bearerAuth: []
tags:
- name: General
description: Core API operations including job management and billing information
- name: Krea
description: Krea-owned generation models including Krea 2
- name: Assets
description: >-
Asset management endpoints for uploading and managing images, videos,
audio files, and 3D models
- name: Styles
description: Style (LoRA) generation and management endpoints
- name: Node Apps
description: Executing custom node apps built in our nodes tool
- name: Image
description: Image generation endpoints
- name: Image Enhance
description: Image enhance endpoints
- name: Video
description: Video generation endpoints
paths:
/generate/image/krea/krea-2/medium:
post:
tags:
- Krea
summary: Krea 2 Medium
description: Best for expressive illustrations.
parameters:
- name: X-Webhook-URL
in: header
required: false
schema:
type: string
format: uri
description: >-
URL to receive a POST request when the job completes. The webhook
will receive the job data including results.
requestBody:
content:
application/json:
schema:
type: object
properties:
prompt:
type: string
seed:
type:
- number
- 'null'
styles:
type: array
items:
type: object
properties:
id:
type: string
strength:
type: number
minimum: -2
maximum: 2
required:
- id
- strength
description: Styles (typically LoRAs) to use for the generation
image_style_references:
type: array
items:
type: object
properties:
strength:
type: number
minimum: 0
maximum: 1
default: 0.5
url:
type: string
format: uri
required:
- url
maxItems: 10
description: >-
Image style references. (0 = no style influence, 1 =
maximum). Default 0.5.
aspect_ratio:
type: string
enum:
- '1:1'
- '4:3'
- '3:2'
- '16:9'
- 2.35:1
- '4:5'
- '2:3'
- '9:16'
description: >-
Aspect ratio. One of: 1:1, 4:3, 3:2, 16:9, 2.35:1, 4:5, 2:3,
9:16.
resolution:
type: string
enum:
- 1K
description: 'Resolution scale. One of: 1K.'
creativity:
type: string
enum:
- raw
- low
- medium
- high
default: low
description: >-
Prompt expansion mode. `raw` disables prompt expansion;
`low`, `medium`, and `high` control expansion strength. This
does not affect the K2 Intensity or Complexity slider LoRAs.
intensity:
type: integer
minimum: -100
maximum: 100
default: 0
description: >-
K2 Intensity slider value from -100 to 100. Use 0 for
neutral/no slider LoRA.
complexity:
type: integer
minimum: -100
maximum: 100
default: 0
description: >-
K2 Complexity slider value from -100 to 100. Use 0 for
neutral/no slider LoRA.
moodboards:
type: array
items:
type: object
properties:
id:
type: string
format: uuid
strength:
type: number
minimum: 0
maximum: 1
default: 0.23
required:
- id
maxItems: 1
description: >-
Moodboards to use for generation. Currently limited to one
moodboard.
required:
- prompt
- aspect_ratio
- resolution
additionalProperties: false
example:
prompt: An igloo village glowing with Aurora's colors.
aspect_ratio: '1:1'
resolution: 1K
responses:
'200':
description: >-
The resulting job data. This will be returned in a pending state
until the job is completed. See
[`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the
results.
content:
application/json:
schema:
type: object
properties:
job_id:
type: string
format: uuid
status:
type: string
enum:
- backlogged
- queued
- scheduled
- processing
- sampling
- intermediate-complete
- completed
- failed
- cancelled
created_at:
type: string
format: date-time
completed_at:
type: 'null'
result:
type: 'null'
error:
type: object
properties:
code:
type: string
message:
type: string
required:
- code
required:
- job_id
- status
- created_at
- completed_at
- result
'400':
description: The request body is invalid.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
'401':
description: You are not authenticated.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
'402':
description: You have run out of credits.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
'429':
description: You have reached the maximum number of concurrent jobs.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
components:
securitySchemes:
bearerAuth:
scheme: bearer
bearerFormat: Bearer
type: http
````