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v1

latestOpenAPI 3.1.02026-07-26590116.2 KB
ImageAPI

Nano Banana Pro

Pricing — per image, in tokens (USD at $0.02/token):

image_sizetokensUSD
1k7$0.140
2k7$0.140
4k12$0.240

Returns an img_uuid; poll GET /api/v1/jobs/detail (or use custom_callback_url) to get the generated image.

post/api/v1/nano-banana-pro

Headers

Authorizationstring

Request body

promptstring required

Text prompt describing the image.

ratio'auto' | '1:1' | '16:9' | '9:16' | '4:3' | '3:4' | '2:3' | '3:2' | '4:5' | '5:4' | '21:9'

Aspect ratio.

image_size'1k' | '2k' | '4k'

Output resolution. Pricing (tokens/image): 1k: 7, 2k: 7, 4k: 12.

web_searchboolean

Enable web search grounding.

custom_callback_urlstring uri

Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt.

Example request

{
  "custom_callback_url": "https://your-server.com/goenhance/callback"
}

Response

codeinteger required
msgstring required