What is Stable Diffusion API?

Stable Diffusion API is a REST API for generating images using Stable Diffusion and 1,000+ community models. It handles the GPU infrastructure so you can focus on building.

Is Stable Diffusion API free?

No. Creating a ModelsLab account is free, but API access requires a paid plan: Basic at $21/month (3,250 API calls), Standard at $47/month (10,000 API calls), or Open Source Unlimited at $149/month (unlimited open-source model generations; third-party models billed separately). Pricing is on modelslab.com.

How do I get a Stable Diffusion API key?

Sign up at modelslab.com (Stable Diffusion API is part of ModelsLab). Your API key is in the dashboard under API Settings.

Can I use Stable Diffusion API commercially?

Yes — you retain full copyright on images you generate via the API and can use them commercially.

What models can I use?

Stable Diffusion 1.5, SDXL, Flux, ControlNet, LoRA fine-tunes, anime/photorealistic specialty models, and 1,000+ community uploads. You can also upload your own.

Now part of ModelsLab

Stable Diffusion API

Get an API key and start generating in 30 seconds — the home of Stable Diffusion and community models

One endpoint for Stable Diffusion 1.5, SDXL, Flux, ControlNet, LoRA, and 2,800+ community models. Plug-and-play API, transparent pricing, unlimited open-source generations on the $149 plan — no GPU, no setup.

Get API key Read the docs

800M+

Images generated

100K+

Developers

2,850+

Models available

From zero to first image in 30 seconds

Send a POST request with your API key and prompt. API plans start at $21/month.

curl -X POST 'https://stablediffusionapi.com/api/v4/dreambooth' \
  -H 'Content-Type: application/json' \
  -d '{
  "key": "YOUR_API_KEY",
  "model_id": "sd-1.5",
  "prompt": "a photo of an astronaut riding a horse on mars",
  "negative_prompt": null,
  "width": "512",
  "height": "512",
  "samples": "1",
  "num_inference_steps": "30",
  "guidance_scale": 7.5,
  "safety_checker": "no",
  "enhance_prompt": "yes",
  "seed": null,
  "webhook": null,
  "track_id": null
}'

import requests, json

url = "https://stablediffusionapi.com/api/v4/dreambooth"
payload = json.dumps({
  "key": "YOUR_API_KEY",
  "model_id": "sd-1.5",
  "prompt": "a photo of an astronaut riding a horse on mars",
  "negative_prompt": null,
  "width": "512",
  "height": "512",
  "samples": "1",
  "num_inference_steps": "30",
  "guidance_scale": 7.5,
  "safety_checker": "no",
  "enhance_prompt": "yes",
  "seed": null,
  "webhook": null,
  "track_id": null
})
headers = {'Content-Type': 'application/json'}
response = requests.post(url, headers=headers, data=payload)
print(response.text)

const response = await fetch("https://stablediffusionapi.com/api/v4/dreambooth", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "key": "YOUR_API_KEY",
  "model_id": "sd-1.5",
  "prompt": "a photo of an astronaut riding a horse on mars",
  "negative_prompt": null,
  "width": "512",
  "height": "512",
  "samples": "1",
  "num_inference_steps": "30",
  "guidance_scale": 7.5,
  "safety_checker": "no",
  "enhance_prompt": "yes",
  "seed": null,
  "webhook": null,
  "track_id": null
})
});
const data = await response.json();
console.log(data);

Most used models

From 2,850+ in the catalog. Each ships with code samples and parameters.

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Realistic Vision V51

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Anything V5

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Tufos Comic Style Nerd Stallion F1d XL Nerd Stallion F1d V2 1

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Uncensored Flux LoRA

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Realistic Vision V60

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Anything V3

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Pony Realism V21

378.1K images generated

Anything V4

378.1K images generated

Common questions

What is Stable Diffusion API?: Stable Diffusion API is a REST API for generating images using Stable Diffusion and 1,000+ community models. It handles the GPU infrastructure so you can focus on building.
Is Stable Diffusion API free?: No. Creating a ModelsLab account is free, but API access requires a paid plan: Basic at $21/month (3,250 API calls), Standard at $47/month (10,000 API calls), or Open Source Unlimited at $149/month (unlimited open-source model generations; third-party models billed separately). Pricing is on modelslab.com.
How do I get a Stable Diffusion API key?: Sign up at modelslab.com (Stable Diffusion API is part of ModelsLab). Your API key is in the dashboard under API Settings.
Can I use Stable Diffusion API commercially?: Yes — you retain full copyright on images you generate via the API and can use them commercially.
What models can I use?: Stable Diffusion 1.5, SDXL, Flux, ControlNet, LoRA fine-tunes, anime/photorealistic specialty models, and 1,000+ community uploads. You can also upload your own.

Ready to build?

API plans start at $21/month. Open-source models are unlimited on the $149 plan.

Get your API key →