Google Nanobanana Image Generation

Generates an image from a text description on Google's Nanobanana or Nanobanana Pro model and returns it as Base64.

POST/v3/image/generation/google/nanobanana/generateTry it

• Price3 ICper request
• Served122.8Kcalls

• v1.0
• Active

Input

contents

parts: { text }

generationConfig

responseModalities: TEXT IMAGE

OutputPOST /v3/image/generation/google/nanobanana/generate

candidates

content: { parts }

Every field, under Response

Request

curl -X POST https://api.iapp.co.th/v3/image/generation/google/nanobanana/generate \
  -H "apikey: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"contents": [{"parts": [{"text": "A Thai temple at sunset with golden spires, photorealistic"}]}], "generationConfig": {"responseModalities": ["TEXT", "IMAGE"]}}'

Response

200OK. The fields are explained under Response.

{
  "candidates": [
    {
      "content": {
        "parts": [
          { "inlineData": { "mimeType": "image/png", "data": "iVBORw0KGgoAAAANSUhEUgAA..." } }
        ]
      }
    }
  ]
}

Request

JSON in the Gemini request shape. Open only to accounts that have bought a credit package at least once; the free sign-up credits do not unlock it.

Headers

apikeystringrequired

Your API key, created under API Keys in the control panel.

Body

contentsarrayrequired

The conversation: each entry a list of parts, a part being {"text": "…"}, up to 32,000 characters. Name the subject, style, light, composition and mood: "A fluffy orange tabby on a windowsill, warm afternoon sun, cosy interior" beats "a cat".

generationConfigobjectrequired

{"responseModalities": ["TEXT", "IMAGE"]}.

Endpoint	Model	For	Price
/v3/image/generation/google/nanobanana/generate	Nanobanana	Quick prototypes, simple graphics, volume	3 IC per request
/v3/image/generation/google/nanobananapro/generate	Nanobanana Pro	Detailed artwork, complex scenes, 4K, correct Thai text	8 IC per request

Response

candidates[0].content.parts[], each part an inlineData with its mimeType, PNG or JPEG, and the image as Base64 in data. A response takes 5 to 30 seconds, by complexity.

candidates[0].content.parts[], each part an inlineData with its mimeType, PNG or JPEG, and the image as Base64 in data. A response takes 5 to 30 seconds, by complexity.

Details

Limits

• No adult content, violence or copyrighted material; such requests are filtered.

Data handling

Every generated image carries a SynthID watermark. The service is GDPR and PDPA compliant.