Nano Banana Pro

Generate or edit AI images with the NanoPhoto.AI Nano Banana Pro API via OpenClaw.

Generate or edit images through the NanoPhoto.AI Nano Banana Pro API.

Install: npx clawhub@latest install nano-banana-pro

Prerequisites

Obtain an API key at nanophoto.ai/settings/apikeys
Configure NANOPHOTO_API_KEY in your OpenClaw skill settings

{
  "skills": {
    "entries": {
      "nano-banana-pro": {
        "enabled": true,
        "env": {
          "NANOPHOTO_API_KEY": "your_api_key_here"
        }
      }
    }
  }
}

Modes

generate — Text-to-image generation
edit — Image-to-image editing (requires public image URLs, max 8)

Important

The API only accepts public image URLs. Do not send local files or base64 images.

Parameters

Parameter	Type	Required	Description
`prompt`	string	Yes	Image generation prompt
`mode`	string	Yes	`generate` or `edit`
`aspectRatio`	string	No	`16:9`, `9:16`, `4:3`, or `3:4`
`imageQuality`	string	No	`1K` (default), `2K`, or `4K`
`inputImageUrls`	string[]	Conditional	Required for `edit` mode (max 8 URLs)

Usage

Text to Image

python3 scripts/nano_banana_generate.py \
  --prompt "A futuristic cityscape at sunset with flying cars and neon lights" \
  --mode generate \
  --aspect-ratio 16:9 \
  --image-quality 2K

Image to Image

python3 scripts/nano_banana_generate.py \
  --prompt "Transform this photo into a watercolor painting style" \
  --mode edit \
  --input-image-url https://example.com/photo.webp \
  --aspect-ratio 16:9 \
  --image-quality 1K

The script reads NANOPHOTO_API_KEY from the environment, submits the task, polls automatically, and prints the final JSON result.

Error Codes

Code	Cause	Action
`LOGIN_REQUIRED`	Invalid API key	Verify at settings/apikeys
`INSUFFICIENT_CREDITS`	Not enough credits	Top up
`INVALID_PROMPT`	Missing prompt	Provide a prompt
`MISSING_INPUT_IMAGE`	Edit mode missing images	Provide public image URLs
`TOO_MANY_IMAGES`	More than 8 images	Reduce to 8 or fewer
`GENERATION_FAILED`	Server error	Retry or simplify prompt

Parameter

Type

Required

Description

prompt

string

Yes

Image generation prompt

mode

string

Yes

generate or edit

aspectRatio

string

16:9, 9:16, 4:3, or 3:4

imageQuality

string

1K (default), 2K, or 4K

inputImageUrls

string[]

Conditional

Required for edit mode (max 8 URLs)

Usage

python3 scripts/nano_banana_generate.py \
  --prompt "A futuristic cityscape at sunset with flying cars and neon lights" \
  --mode generate \
  --aspect-ratio 16:9 \
  --image-quality 2K

python3 scripts/nano_banana_generate.py \
  --prompt "Transform this photo into a watercolor painting style" \
  --mode edit \
  --input-image-url https://example.com/photo.webp \
  --aspect-ratio 16:9 \
  --image-quality 1K

The script reads NANOPHOTO_API_KEY from the environment, submits the task, polls automatically, and prints the final JSON result.

Error Codes

Code	Cause	Action
`LOGIN_REQUIRED`	Invalid API key	Verify at settings/apikeys
`INSUFFICIENT_CREDITS`	Not enough credits	Top up
`INVALID_PROMPT`	Missing prompt	Provide a prompt
`MISSING_INPUT_IMAGE`	Edit mode missing images	Provide public image URLs
`TOO_MANY_IMAGES`	More than 8 images	Reduce to 8 or fewer
`GENERATION_FAILED`	Server error	Retry or simplify prompt

Prerequisites

Modes

Parameters

Usage

Text to Image

Image to Image

Error Codes

목차

Nano Banana Pro

Prerequisites

Modes

Parameters

Usage

Text to Image

Image to Image

Error Codes

목차