# Google - Nano Banana 2
## OpenAPI Specification
```yaml
openapi: 3.0.1
info:
title: ''
description: ''
version: 1.0.0
paths:
/api/v1/jobs/createTask:
post:
summary: Google - Nano Banana 2
deprecated: false
description: >
Image generation by Nano Banana 2
## Query Task Status
After submitting a task, use the unified query endpoint to check
progress and retrieve results:
Learn how to query task status and retrieve generation results
::: tip[]
For production use, we recommend using the `callBackUrl` parameter to
receive automatic notifications when generation completes, rather than
polling the status endpoint.
:::
## Related Resources
Explore all available models
Check credits and account usage
tags:
- docs/en/Market/Image Models/Google
parameters: []
requestBody:
content:
application/json:
schema:
type: object
required:
- model
- input
properties:
model:
type: string
enum:
- nano-banana-2
default: nano-banana-2
description: |-
The model name to use for generation. Required field.
- Must be `nano-banana-2` for this endpoint
examples:
- nano-banana-2
callBackUrl:
type: string
format: uri
description: >-
The URL to receive generation task completion updates.
Optional but recommended for production use.
- System will POST task status and results to this URL when
generation completes
- Callback includes generated content URLs and task
information
- Your callback endpoint should accept POST requests with
JSON payload containing results
- Alternatively, use the Get Task Details endpoint to poll
task status
- To ensure callback security, see [Webhook Verification
Guide](/common-api/webhook-verification) for signature
verification implementation
examples:
- https://your-domain.com/api/callback
input:
type: object
description: Input parameters for the generation task
properties:
prompt:
type: string
description: >-
A text description of the image you want to generate
(Max length: 20000 characters)
maxLength: 20000
examples:
- >-
Comic poster: cool banana hero in shades leaps from
sci-fi pad. Six panels: 1) 4K mountain landscape, 2)
banana holds page of long multilingual text with auto
translation, 3) Gemini 3 hologram for
search/knowledge/reasoning, 4) camera UI sliders for
angle focus color, 5) frame trio 1:1-9:16, 6)
consistent banana poses. Footer shows Google icons.
Tagline: Nano Banana Pro now on Kie AI.
image_input:
description: >-
Input images to transform or use as reference (supports
up to 14 images) (File URL after upload, not file
content; Accepted types: image/jpeg, image/png,
image/webp; Max size: 30.0MB)
type: array
items:
type: string
format: uri
maxItems: 14
examples:
- []
aspect_ratio:
type: string
description: Aspect ratio of the generated image
enum:
- '1:1'
- '2:3'
- '3:2'
- '1:4'
- '4:1'
- '3:4'
- '4:3'
- '4:5'
- '5:4'
- '1:8'
- '8:1'
- '9:16'
- '16:9'
- '21:9'
- auto
default: auto
examples:
- '1:1'
x-apidog-enum:
- value: '1:1'
name: ''
description: ''
- value: '2:3'
name: ''
description: ''
- value: '3:2'
name: ''
description: ''
- value: '1:4'
name: ''
description: ''
- value: '4:1'
name: ''
description: ''
- value: '3:4'
name: ''
description: ''
- value: '4:3'
name: ''
description: ''
- value: '4:5'
name: ''
description: ''
- value: '5:4'
name: ''
description: ''
- value: '1:8'
name: ''
description: ''
- value: '8:1'
name: ''
description: ''
- value: '9:16'
name: ''
description: ''
- value: '16:9'
name: ''
description: ''
- value: '21:9'
name: ''
description: ''
- value: auto
name: ''
description: ''
resolution:
description: Resolution of the generated image
type: string
enum:
- 1K
- 2K
- 4K
default: 1K
examples:
- 1K
output_format:
description: Format of the output image
type: string
enum:
- png
- jpg
default: jpg
examples:
- jpg
required:
- prompt
x-apidog-orders:
- prompt
- image_input
- aspect_ratio
- resolution
- output_format
x-apidog-ignore-properties: []
x-apidog-orders:
- model
- callBackUrl
- input
x-apidog-ignore-properties: []
example:
model: nano-banana-2
callBackUrl: https://your-domain.com/api/callback
input:
prompt: >-
Comic poster: cool banana hero in shades leaps from sci-fi
pad. Six panels: 1) 4K mountain landscape, 2) banana holds
page of long multilingual text with auto translation, 3)
Gemini 3 hologram for search/knowledge/reasoning, 4) camera UI
sliders for angle focus color, 5) frame trio 1:1-9:16, 6)
consistent banana poses. Footer shows Google icons. Tagline:
Nano Banana Pro now on Kie AI.
image_input: []
aspect_ratio: auto
resolution: 1K
output_format: png
responses:
'200':
description: ''
content:
application/json:
schema:
type: object
properties:
code:
type: integer
description: >-
Response status code
- **200**: Success - Request has been processed
successfully
- **401**: Unauthorized - Authentication credentials are
missing or invalid
- **402**: Insufficient Credits - Account does not have
enough credits to perform the operation
- **404**: Not Found - The requested resource or endpoint
does not exist
- **422**: Validation Error - The request parameters
failed validation checks
- **429**: Rate Limited - Request limit has been exceeded
for this resource
- **433**: Request Limit - Sub-key Usage Exceeds Limit
- **455**: Service Unavailable - System is currently
undergoing maintenance
- **500**: Server Error - An unexpected error occurred
while processing the request
- **501**: Generation Failed - Content generation task
failed
- **505**: Feature Disabled - The requested feature is
currently disabled
enum:
- 200
- 401
- 402
- 404
- 422
- 429
- 433
- 455
- 500
- 501
- 505
x-apidog-enum:
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name: ''
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description: ''
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name: ''
description: ''
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name: ''
description: ''
msg:
type: string
description: Response message, error description when failed
examples:
- success
data:
type: object
properties:
taskId:
type: string
description: >-
Task ID, can be used with Get Task Details endpoint to
query task status
x-apidog-orders:
- taskId
required:
- taskId
x-apidog-ignore-properties: []
x-apidog-orders:
- 01KPA2X6SD673XG6BGZ9JH4KEH
required:
- data
x-apidog-refs:
01KPA2X6SD673XG6BGZ9JH4KEH:
$ref: '#/components/schemas/ApiResponse'
x-apidog-ignore-properties:
- code
- msg
- data
headers: {}
x-apidog-name: 成功
'500':
description: request failed
content:
application/json:
schema:
type: object
properties:
code:
type: integer
description: >-
Response status code
- **200**: Success - Request has been processed
successfully
- **401**: Unauthorized - Authentication credentials are
missing or invalid
- **402**: Insufficient Credits - Account does not have
enough credits to perform the operation
- **404**: Not Found - The requested resource or endpoint
does not exist
- **408**: Upstream is currently experiencing service
issues. No result has been returned for over 10 minutes.
- **422**: Validation Error - The request parameters
failed validation checks
- **429**: Rate Limited - Request limit has been exceeded
for this resource
- **455**: Service Unavailable - System is currently
undergoing maintenance
- **500**: Server Error - An unexpected error occurred
while processing the request
- **501**: Generation Failed - Content generation task
failed
- **505**: Feature Disabled - The requested feature is
currently disabled
msg:
type: string
description: Response message, error description when failed
data:
type: object
properties: {}
x-apidog-orders: []
x-apidog-ignore-properties: []
x-apidog-orders:
- code
- msg
- data
required:
- code
- msg
- data
x-apidog-ignore-properties: []
example:
code: 500
msg: >-
Server Error - An unexpected error occurred while processing
the request
data: null
headers: {}
x-apidog-name: 'Error '
security:
- BearerAuth: []
x-apidog:
required: true
schemeGroups:
- id: _K68pFi7DJw9f1w8M0nIP
schemeIds:
- BearerAuth
use:
id: _K68pFi7DJw9f1w8M0nIP
callbacks:
onImageGenerated:
'{$request.body#/callBackUrl}':
post:
summary: Image Generation Callback
description: >-
When the image generation task is completed, the system sends
the result to your callback URL via a POST request.
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
code:
type: integer
description: >-
Status code
- **200**: Success - Image generation task completed
successfully
- **400**: Invalid request parameters or content
violates policy
- **500**: Internal error. Please try again later.
- **501**: Failed - Image generation task failed
enum:
- 200
- 400
- 500
- 501
msg:
type: string
description: Status message
example: Playground task completed successfully.
data:
type: object
properties:
completeTime:
type: integer
format: int64
description: >-
Task completion time, represented as a Unix
timestamp in milliseconds
example: 1786427040000
costTime:
type: integer
description: Task duration in seconds
example: 48
createTime:
type: integer
format: int64
description: >-
Task creation time, represented as a Unix
timestamp in milliseconds
example: 1786426989000
creditsConsumed:
type: number
format: double
description: Number of credits consumed by the task
example: 8
model:
type: string
description: Image generation model used for the task
example: nano-banana-2
param:
type: string
description: >-
Parameters submitted when creating the task, in
JSON string format
example: >-
{"input":"{\"image_input\":[],\"aspect_ratio\":\"auto\",\"output_format\":\"jpg\",\"prompt\":\"A
highly detailed illustration of a futuristic
banana-shaped spaceship flying above a neon city
at night, with realistic lighting, cinematic
effects, and 4K
quality.\",\"resolution\":\"2K\"}","callBackUrl":"https://webhook.uutool.cn/5f723555-ec59-4b8f-8feb-bed810982785","model":"nano-banana-2"}
resultJson:
type: string
description: >-
Image generation result in JSON string format.
resultUrls contains the list of generated image
URLs.
example: >-
{"resultUrls":["https://tempfile.aiquickdraw.com/workers/images/image_90b6bf4499a80b74a2b5ee640b7aaf70.jpg"]}
state:
type: string
description: Task status
enum:
- success
- fail
example: success
taskId:
type: string
description: Task ID
example: 4e029a320e97cff234e6e06827c3965e
updateTime:
type: integer
format: int64
description: >-
Last task update time, represented as a Unix
timestamp in milliseconds
example: 1786427040000
responses:
'200':
description: Callback received successfully
x-apidog-folder: docs/en/Market/Image Models/Google
x-apidog-status: released
x-run-in-apidog: https://app.apidog.com/web/project/1184766/apis/api-28711567-run
components:
schemas:
ApiResponse:
type: object
properties:
code:
type: integer
description: >-
Response status code
- **200**: Success - Request has been processed successfully
- **401**: Unauthorized - Authentication credentials are missing or
invalid
- **402**: Insufficient Credits - Account does not have enough
credits to perform the operation
- **404**: Not Found - The requested resource or endpoint does not
exist
- **422**: Validation Error - The request parameters failed
validation checks
- **429**: Rate Limited - Request limit has been exceeded for this
resource
- **433**: Request Limit - Sub-key Usage Exceeds Limit
- **455**: Service Unavailable - System is currently undergoing
maintenance
- **500**: Server Error - An unexpected error occurred while
processing the request
- **501**: Generation Failed - Content generation task failed
- **505**: Feature Disabled - The requested feature is currently
disabled
enum:
- 200
- 401
- 402
- 404
- 422
- 429
- 433
- 455
- 500
- 501
- 505
x-apidog-enum:
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description: ''
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description: ''
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name: ''
description: ''
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name: ''
description: ''
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name: ''
description: ''
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name: ''
description: ''
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name: ''
description: ''
- value: 501
name: ''
description: ''
- value: 505
name: ''
description: ''
msg:
type: string
description: Response message, error description when failed
examples:
- success
data:
type: object
properties:
taskId:
type: string
description: >-
Task ID, can be used with Get Task Details endpoint to query
task status
x-apidog-orders:
- taskId
required:
- taskId
x-apidog-ignore-properties: []
x-apidog-orders:
- code
- msg
- data
title: response not with recordId
required:
- data
x-apidog-ignore-properties: []
x-apidog-folder: ''
securitySchemes:
BearerAuth:
type: bearer
scheme: bearer
bearerFormat: API Key
description: >-
All API requests require a Bearer Token. Add the header `Authorization:
Bearer YOUR_API_KEY` to authenticate requests.
BearerAuth1:
type: bearer
scheme: bearer
bearerFormat: API Key
description: >-
所有 API 请求都需要 Bearer Token。请在请求头中添加 `Authorization: Bearer YOUR_API_KEY`
进行身份验证。
servers:
- url: https://api.kie.ai
description: 正式环境
security:
- BearerAuth: []
x-apidog:
schemeGroups:
- id: kn8M4YUlc5i0A0179ezwx
schemeIds:
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required: true
use:
id: kn8M4YUlc5i0A0179ezwx
scopes:
kn8M4YUlc5i0A0179ezwx:
BearerAuth: []
```