Introduction
The Nano Banana image editing API lets you modify images by simply describing changes in natural language prompts. For startups needing fast, scalable visual adjustments and developers building design tools, it's a game-changer.
Core Capabilities
Add Elements
- Insert new elements like objects, text, or effects
- Example prompt: Add a red hat to the person on the left
- Perfect for enriching marketing images or product mockups
Remove Elements
- Remove unwanted items, backgrounds, or distractions
- Example prompt: Remove the chair in the background
- Ideal for clean product photos
Modify Styles
- Change an image's style, mood, or lighting
- Example prompt: Transform into watercolor painting style
- Suited for design tools offering creative transformations
API Basics
Official Site & Access
- Visit Nano Banana API on Juhe API for documentation
- Obtain your API key from the developer dashboard
Base URL
Use:
Endpoint Structure
Most editing operations are POST requests with JSON payloads.
Implementation Steps
Authentication
Add an Authorization header with YOUR_API_KEY in requests.
Image Upload and Editing
- Provide an image via upload or URL
- Create a prompt describing desired changes
- Send a POST request to the relevant endpoint
Example Request
Below is an example using the Gemini edit image API endpoint to send a prompt:
curl --location --request POST 'https://wisdom-gate.juheapi.com/v1/chat/completions' \
--header 'Authorization: YOUR_API_KEY' \
--header 'Content-Type: application/json' \
--header 'Accept: */*' \
--header 'Host: wisdom-gate.juheapi.com' \
--header 'Connection: keep-alive' \
--data-raw '{
"model":"wisdom-vision-gemini-2.5-flash-image",
"messages": [
{
"role": "user",
"content": "Add a sunrise over the mountains"
}
]
}'
Response Handling
- Parse the JSON response to get the output image URL or base64 binary
- Save or serve processed image as per app requirements
Use Cases for Startups and Developers
Design Tools Enhancement
Integrate directly into design platforms, enabling non-technical users to refine images with plain text prompts.
Marketing Content Creation
Quickly adapt visuals for specific campaigns, adding seasonal elements or brand touches.
Product Photography Cleanup
Remove background clutter in ecommerce product shots efficiently.
Best Practices
Crafting Effective Prompts
- Specify object type, position, and styling clearly
- Use descriptive, concise language
Testing and Iterating
Test different prompt variations to fine-tune results.
Managing API Limits
Monitor usage metrics and optimize requests to avoid exceeding quota.
Advanced Scenarios
Combining Edits
Apply multiple edits in a single prompt for more complex transformations.
Style Transfer
Reference an artistic image to transfer its style onto your target image.
Automation Pipelines
Integrate into batch workflows for processing large sets of images automatically.
Troubleshooting
Common Errors
- Invalid API key
- Malformed JSON payloads
- Missing image URLs
Debugging Tips
- Validate all request fields
- Check API documentation for prompt formatting
Conclusion
By harnessing prompt-based control in the Nano Banana API, startups and developer tools can achieve fast, flexible image editing that scales with creativity and demand.