Nano Banana 2.1 API

Authorization: Bearer sk_live_your_api_key
Content-Type: application/json

curl --fail-with-body https://api.seevio.ai/v1/images/generations \
  -H "Authorization: Bearer $SEEVIO_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "nano-banana-2-1",
  "input": {
    "prompt": "A minimalist ceramic teapot on a stone pedestal, soft studio lighting",
    "aspect_ratio": "1:1",
    "resolution": "2K",
    "output_format": "png",
    "generation_type": "text-to-image"
  }
}'

{
  "taskId": "3f2aK9mR7xQp4TnZ8bLc6YwH",
  "credits": 3
}

curl --fail-with-body https://api.seevio.ai/v1/images/generations \
  -H "Authorization: Bearer $SEEVIO_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "nano-banana-2-1",
  "input": {
    "prompt": "A minimalist ceramic teapot on a stone pedestal, soft studio lighting",
    "aspect_ratio": "1:1",
    "resolution": "2K",
    "output_format": "png",
    "generation_type": "text-to-image"
  }
}'

curl --fail-with-body https://api.seevio.ai/v1/images/generations \
  -H "Authorization: Bearer $SEEVIO_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "nano-banana-2-1",
  "input": {
    "prompt": "Change the teapot to matte sage green. Preserve its shape and the studio lighting.",
    "aspect_ratio": "1:1",
    "resolution": "2K",
    "output_format": "png",
    "generation_type": "image-to-image",
    "image_urls": [
      "https://example.com/teapot.png"
    ]
  }
}'

curl --fail-with-body https://api.seevio.ai/v1/tasks/3f2aK9mR7xQp4TnZ8bLc6YwH \
  -H "Authorization: Bearer $SEEVIO_API_KEY"

{
  "id": "3f2aK9mR7xQp4TnZ8bLc6YwH",
  "created_at": 1789171200,
  "model": "nano-banana-2-1",
  "credits": 3,
  "failed_code": null,
  "status": "queued",
  "billing_status": "reserved",
  "failed_reason": null,
  "data": {
    "results": [],
    "image_expires_at": null,
    "processing_time": null
  }
}

{
  "id": "3f2aK9mR7xQp4TnZ8bLc6YwH",
  "created_at": 1789171200,
  "model": "nano-banana-2-1",
  "credits": 3,
  "failed_code": null,
  "status": "completed",
  "billing_status": "charged",
  "failed_reason": null,
  "data": {
    "results": [
      "https://cdn.seevio.ai/api/images/example.png"
    ],
    "image_expires_at": "2026-10-12T00:00:00.000Z",
    "processing_time": 12
  }
}

{
  "id": "3f2aK9mR7xQp4TnZ8bLc6YwH",
  "created_at": 1789171200,
  "model": "nano-banana-2-1",
  "credits": 3,
  "failed_code": "400",
  "status": "failed",
  "billing_status": "refunded",
  "failed_reason": "The input or output was flagged as sensitive. Please try again with different inputs."
}

curl --fail-with-body https://api.seevio.ai/v1/images/generations \
  -H "Authorization: Bearer $SEEVIO_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "nano-banana-2-1",
  "input": {
    "prompt": "A minimalist ceramic teapot on a stone pedestal, soft studio lighting",
    "aspect_ratio": "1:1",
    "resolution": "2K",
    "output_format": "png",
    "generation_type": "text-to-image"
  },
  "callback_url": "https://example.com/webhooks/seevio"
}'

{
  "id": "3f2aK9mR7xQp4TnZ8bLc6YwH",
  "created_at": 1789171212,
  "model": "nano-banana-2-1",
  "credits": 3,
  "failed_code": null,
  "status": "completed",
  "billing_status": "charged",
  "failed_reason": null,
  "data": {
    "results": [
      "https://cdn.seevio.ai/api/images/example.png"
    ],
    "image_expires_at": "2026-10-12T00:00:00.000Z",
    "processing_time": 12
  },
  "task_created_at": 1789171200
}

{
  "id": "3f2aK9mR7xQp4TnZ8bLc6YwH",
  "created_at": 1789171212,
  "model": "nano-banana-2-1",
  "credits": 3,
  "failed_code": "400",
  "status": "failed",
  "billing_status": "refunded",
  "failed_reason": "The input or output was flagged as sensitive. Please try again with different inputs.",
  "task_created_at": 1789171200,
  "credits_refunded": 3
}

export async function POST(request: Request) {
  const callbackData = await request.json();

  if (callbackData.status === "completed") {
    const imageUrls = callbackData.data.results;
    // Save the image URLs and mark this task as completed in your application.
    console.log(callbackData.id, imageUrls);
  }

  if (callbackData.status === "failed") {
    const { failed_reason, credits_refunded } = callbackData;
    // Record the failure reason and refunded credits for this task.
    console.error(callbackData.id, failed_reason, credits_refunded);
  }

  return new Response(null, { status: 200 });
}

{
  "error": {
    "code": "invalid_request",
    "message": "input.prompt is required."
  }
}

HTTP/1.1 429 Too Many Requests
Content-Type: application/json
Retry-After: 60

{
  "error": {
    "code": "rate_limited",
    "message": "Rate limit exceeded."
  }
}