img_uuid, then resolve the result by polling or HTTPS callback. GoEnhance provides independent API access; this is not Google’s official API.Nano Banana Pro API
Add prompt-to-image generation to your product through GoEnhance. Submit a prompt, choose an aspect ratio and output size, receive an
Create an API Key
A Practical Image API for Developer Workflows
Prompt-to-Image with Flexible Output
Send a required text prompt of 1–2000 characters, choose from eleven documented aspect ratios, and request 1k, 2k, or 4k output.
Async Delivery for Production Apps
Persist the returned img_uuid, poll GET /api/v1/jobs/detail, or receive status changes at a public HTTPS callback URL.
Validate the request fields and enum values before submission.
Nano Banana Pro API Parameters
Endpoint
Send POST requests to <code>https://api.goenhance.ai/api/v1/nano-banana-pro</code>.
Authorization
Include your GoEnhance API credential in the <code>Authorization</code> header.
Prompt
Provide a required text prompt between 1 and 2000 characters describing the image to generate.
Aspect Ratio
Choose <code>auto</code>, <code>1:1</code>, <code>16:9</code>, <code>9:16</code>, <code>4:3</code>, <code>3:4</code>, <code>2:3</code>, <code>3:2</code>, <code>4:5</code>, <code>5:4</code>, or <code>21:9</code>.
Image Size
Select <code>1k</code>, <code>2k</code>, or <code>4k</code>; the documented default is <code>1k</code>.
Optional Controls
Enable <code>web_search</code> when needed and add a publicly accessible HTTPS <code>custom_callback_url</code> for status notifications.
Choose output size with the documented per-image cost in view.
Nano Banana Pro API Pricing
1K and 2K Pricing
Nano Banana Pro API pricing is 7 tokens per image at <code>1k</code> or <code>2k</code>, equal to $0.140 per image at the documented $0.02 token rate.
4K Pricing
A <code>4k</code> request costs 12 tokens per image, equal to $0.240 per image.
Async Task Response
A successful submission returns an <code>img_uuid</code> rather than the final image inline. Store it for polling and callback reconciliation.
Integrate Nano Banana Pro in Three Steps
1
1. Build the Request
Write a focused prompt, select a supported ratio and image size, and optionally add web grounding or a public HTTPS callback URL.
2
2. Submit and Persist
POST the JSON payload with authorization, then save the returned
img_uuid before your application responds to the caller. 3
3. Resolve the Result
Poll the task-detail endpoint or validate callback events until the job reaches a terminal state, then store the output or surface the failure safely.
Build repeatable image-generation workflows without operating the model-serving stack yourself.
Nano Banana Pro API Use Cases
Product Visuals
Generate clean product-scene concepts and campaign-ready variations from structured prompts.
Marketing Creative
Create visual directions for ads, landing pages, and seasonal campaigns across supported aspect ratios.
Editorial Illustration
Turn article concepts and creative briefs into original illustrative assets for content workflows.
E-commerce Automation
Produce category, lifestyle, and merchandising concepts at the resolution your pipeline requires.
Localized Campaigns
Adapt visual direction for regional campaigns through prompt changes and optional web grounding.
Creative Prototyping
Explore compositions and art directions before committing a concept to a larger production process.
Implementation details for pricing, output controls, async delivery, and Google API search intent.