imgzen Gemini 3.1 Flash Image Generator (nano-banana-2)

Name: imgzen Gemini 3.1 Flash Image Generator (nano-banana-2)
Price: 0.1 USD
Rating: 2.7 (2 reviews)

x402

imgzen Gemini 3.1 Flash Image Generator (nano-banana-2) is a paid API for AI agents from api.imgzen.dev, paid per call via x402, $0.1/call, status down (last checked 2026-10-12, last successful call 2026-05-13).

Generates or edits images using Google's Gemini 3.1 Flash Image model at configurable quality and aspect ratio, paid via x402 USDC microtransaction

Price / call$0.1

Seller volume →—

Success43%

StatusDown

How this service works

imgzen — Gemini 3.1 Flash Image (aka nano-banana-2), fast high-quality generation by Google — $0.100/image

Output

Returns a JSON object containing the URL of the generated image hosted on imgzen's CDN, the model identifier (gemini-3.1-flash-image-preview), provider name, generation time in milliseconds, a success status string, and payment confirmation showing 0.1 USDC charged via x402.

Example use cases

Example prompt

“Generate a 2k quality image of a serene mountain lake at sunset with pine trees reflected in calm water, in 16:9 widescreen format using Google's Gemini Flash model.”

Technical details

Endpoint

POSThttps://api.imgzen.dev/v1/models/nano-banana-2/generate?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need fast, high-quality image generation at $0.10/image and want a balance between speed and quality from Google's Gemini lineup. Prefer this over the cheaper nano-banana ($0.020) when you need better quality, and over nano-banana-pro ($0.200) when best-in-class text rendering is not required. Best for landscape, portrait, and creative scene generation where generation latency matters.

Side effects

Invalid prompt (empty or too long) — 400 Bad Request
Unsupported aspect_ratio or quality enum value — 400 Bad Request
Payment failure or insufficient USDC balance — 402 Payment Required
Reference image URL unreachable or invalid base64 — 422 Unprocessable Entity
Exceeded 5 reference images limit — 400 Bad Request
Model temporarily unavailable — 503 Service Unavailable
Generation timeout (model too slow) — 504 Gateway Timeout

Input

{
  "prompt": "A serene mountain lake at sunset with pine trees reflected in calm water",
  "quality": "2k",
  "aspect_ratio": "16:9"
}

Schema · Request body

Field	Type	Description
image	array	Optional reference image(s) for editing (max 5), supports URL and base64
prompt	string	Text prompt describing the image to generate or edit
quality	string	Output quality: 1k, 2k, 4k
aspect_ratio	string	Image aspect ratio

Output

{
  "output": {
    "url": "https://cache.imgzen.dev/gen/zzub5hthPo-wPqWblunIr.jpg",
    "model": "gemini-3.1-flash-image-preview",
    "provider": "imgzen-google",
    "duration_ms": 18824
  },
  "status": "success",
  "payment": {
    "amount": "0.1000",
    "method": "x402",
    "currency": "USDC"
  }
}

Schema · Response

Field	Type	Description
outputrequired	object
statusrequired	string
paymentrequired	object

Reviews

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