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nanobanana is the API model ID for the public nano-banana catalog model. It supports asynchronous image generation and image editing through the same POST /v1/generate endpoint.
FieldValue
Public catalog namenano-banana
API model IDnanobanana
ProcessingAsync task
Generate task typeimage_generate
Edit task typeimage_edit
Base cost$0.0100 per output image

​
Generate an Image

curl -X POST https://api.eggapi.ai/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nanobanana",
    "prompt": "A clean editorial photo of a lemon tart on a steel table",
    "aspect_ratio": "16:9",
    "num_outputs": 1
  }'
Response: 
{
  "data": {
    "id": "gen_abc123def456",
    "status": "pending",
    "model": "nanobanana",
    "type": "image_generate",
    "cost": "$0.00",
    "created_at": "2026-05-08T10:30:00Z"
  },
  "error": null
}
Poll GET /v1/tasks/{id} for the final output.

​
Edit an Image

Send image_urls to switch into image editing mode: 
curl -X POST https://api.eggapi.ai/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nanobanana",
    "prompt": "Replace the background with a quiet marble kitchen",
    "image_urls": ["https://example.com/input.png"]
  }'
Response: 
{
  "data": {
    "id": "gen_edit123456",
    "status": "pending",
    "model": "nanobanana",
    "type": "image_edit",
    "cost": "$0.00",
    "created_at": "2026-05-08T10:30:00Z"
  },
  "error": null
}

​
Completed Output

{
  "data": {
    "id": "gen_abc123def456",
    "status": "completed",
    "model": "nanobanana",
    "type": "image_generate",
    "output": {
      "url": "https://file.eggapi.ai/images/gen_abc123def456/0.png",
      "urls": ["https://file.eggapi.ai/images/gen_abc123def456/0.png"]
    },
    "cost": "$0.0100",
    "created_at": "2026-05-08T10:30:00Z",
    "started_at": "2026-05-08T10:30:01Z",
    "completed_at": "2026-05-08T10:30:10Z"
  },
  "error": null
}