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Stable Diffusion v3.5 Large Image Generator (dopamint.ai)
x402
Stable Diffusion v3.5 Large Image Generator (dopamint.ai) is a paid API for AI agents from x402-dev.dopamint.ai, paid per call via x402, $0.0878/call, status down (last checked 2026-09-15).
Generates images from a text prompt using the Stable Diffusion v3.5 Large model, returning a job ID and status URL for async retrieval
Price / call$0.0878
Success—
StatusDown
How this service works
Generate image using stable-diffusion-v35-large
Output
An async job response containing a unique jobId, a statusUrl to poll for the completed image, a human-readable message with tracking info, an ISO 8601 timestamp, and an HTTP status code. The agent must poll the statusUrl to retrieve the final generated image once processing is complete.
Example use cases
Example prompt
“Generate a landscape image of a misty mountain forest at sunrise using Stable Diffusion v3.5 Large — landscape 16:9 format, 1 image, and use seed 42 so I can reproduce it later.”
Technical details
Endpoint
POSThttps://x402-dev.dopamint.ai/api/ai/generations/images/stable-diffusion-v35-largeWhen to prefer
Choose this endpoint when you need high-quality, detailed image generation using the Stable Diffusion v3.5 Large model specifically — it is preferable over nano-banana or nano-banana-pro sibling endpoints when maximum image quality and detail are priorities. Use when the user specifies SD v3.5, stable diffusion large, or needs a reliable seed-based reproducible output. Costs $0.0878 USDC per call via x402 payment protocol.
Side effects
- Invalid or missing prompt returns a 400 error
- Unsupported image_size value causes a validation error
- Model overload or timeout may result in a failed job status when polling
- Payment failure (insufficient USDC) prevents the request from being processed
- seed value out of integer range returns a schema validation error
- Safety checker blocks prompt and returns no image
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | integer | The same seed and the same prompt given to the same version of the model will output the same image every time. |
| promptrequired | string | The prompt to generate an image from. |
| sync_mode | boolean | If set to true, the function will wait for the image to be generated and uploaded before returning the response. This will increase the latency of the function but it allows you to get the image directly in the response without going through the CDN. |
| image_size | ImageSize | "square_hd" | "square" | "portrait_4_3" | "portrait_16_9" | "landscape_4_3" | "landscape_16_9" | The size of the generated image. You can choose between some presets or custom height and width that **must be multiples of 16**. |
| num_images | integer | The number of images to generate. |
| enable_safety_checker | boolean | If set to true, the safety checker will be enabled. |
Output
Schema · Response
{
"jobId": {
"type": "string",
"description": "Unique job identifier"
},
"message": {
"type": "string",
"description": "Human-readable message with status tracking URL"
},
"statusUrl": {
"type": "string",
"description": "URL to check job status"
},
"timestamp": {
"type": "string",
"description": "ISO 8601 timestamp of the response"
},
"statusCode": {
"type": "integer",
"description": "HTTP status code"
}
}Tags
x402
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