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Nanobanana x402 AI Image Generation
x402
Nanobanana x402 AI Image Generation is a paid API for AI agents from nanobanana-x402.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Generates AI images from a text prompt via micropayment (x402/Base USDC), returning a base64-encoded PNG at a chosen aspect ratio powered by Gemini.
Price / call$0.01
Success—
StatusUnknown
How this service works
Generate or edit an image with Gemini and receive base64 PNG output through a pay-per-request API.
Output
A JSON object containing a base64-encoded PNG image (image_b64), the MIME type (image/png), the aspect ratio used, the Gemini model name used, and an echo of the input parameters. The image can be decoded and used directly.
Example use cases
Product hero image for e-commerce
“Create a product hero image of a minimalist white wireless speaker on a clean white background with subtle shadows, in 4:3 format, for our product listing page.”
Social media banner generation
“Generate a cinematic 16:9 AI image of a futuristic cityscape at night with neon lights reflecting on rain-wet streets — I need it for a social media cover banner.”
Portrait illustration for blog post
“Make a 2:3 portrait-format AI illustration of a cozy reading nook with warm lamp light and stacked books, for my blog post header.”
Technical details
Endpoint
POSThttps://nanobanana-x402.fly.dev/api/edit-imageWhen to prefer
Choose this endpoint when you need pay-per-use AI image generation with no subscription, billed in USDC micropayments via the x402 protocol on Base. Ideal for agents that need to generate images on demand without managing API keys for Gemini directly, and where cost predictability ($0.01 per image) matters. Prefer this over self-managed Gemini API calls when the agent stack already supports x402 payment flows.
Side effects
- Payment failure or insufficient USDC balance — x402 payment not completed, image not generated
- Invalid aspect ratio value — must be one of the 10 supported enum values
- Missing or empty prompt — returns error without generating an image
- Gemini API downstream error — model unavailable or rate-limited
- Network timeout on the fly.dev host — request may need to be retried
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| prompt | string | Text prompt describing the image to generate |
| aspectRatio | string | Output aspect ratio (default: 1:1) |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"input": {
"type": "http",
"method": "POST",
"bodyFields": {
"prompt": "A product hero image for a Telegram breach monitor, neon terminal style",
"aspectRatio": "16:9"
}
},
"model": "gemini-3.1-flash-image-preview",
"image_b64": "iVBORw0KGgoAAAANSUhEUgAA...",
"mime_type": "image/png",
"aspectRatio": "1:1"
}
}Tags
x402
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