At a glance
The Stable Diffusion v1.5 API runs Stable Diffusion v1.5 through Mage at POST https://api.mage.space/v1/stable_diffusion_v15/generate. A request at the default settings costs 10 Gems (about $0.01), with no subscription. Stable Diffusion v1.5 takes no @handle mentions.
Image
Output
1
Variant
10
Gems per image, default
$0.01
About, in USD
Overview
What the Stable Diffusion v1.5 API does
The original Stable Diffusion 1.5, at a budget price. Text-to-image or from one input image, perfect for matching older work.
The classic Stable Diffusion 1.5, with an optional input image.
It accepts image as inputs.
Quick start
Call the Stable Diffusion v1.5 API
Set MAGE_API_KEY, submit to /stable_diffusion_v15/generate, and poll status_url until the request completes.
cURL
STATUS_URL=$(curl --request POST 'https://api.mage.space/v1/stable_diffusion_v15/generate' \
--header "Authorization: Bearer $MAGE_API_KEY" \
--header 'Content-Type: application/json' \
--data '{
"prompt": "Editorial portrait in soft daylight, 35mm film look",
"aspect_ratio": "4:5",
"model_id": "15012C538F503CE2EBFC2C8547B268C75CCDAFF7A281DB55399940FF1D70E21D"
}' | jq -r '.status_url')
# Repeat until status is "completed"; result.url is the file
curl "$STATUS_URL" --header "Authorization: Bearer $MAGE_API_KEY"Python
import os, time, requests
headers = {"Authorization": f"Bearer {os.environ['MAGE_API_KEY']}"}
request = requests.post(
"https://api.mage.space/v1/stable_diffusion_v15/generate",
headers=headers,
json={
"prompt": "Editorial portrait in soft daylight, 35mm film look",
"aspect_ratio": "4:5",
"model_id": "15012C538F503CE2EBFC2C8547B268C75CCDAFF7A281DB55399940FF1D70E21D"
},
).json()
while request["status"] in ("queued", "in_progress"):
time.sleep(3)
request = requests.get(request["status_url"], headers=headers).json()
print(request["status"], request["result"] and request["result"]["url"])JavaScript
const headers = {
Authorization: `Bearer ${process.env.MAGE_API_KEY}`,
'Content-Type': 'application/json',
};
let request = await fetch('https://api.mage.space/v1/stable_diffusion_v15/generate', {
method: 'POST',
headers,
body: JSON.stringify({
"prompt": "Editorial portrait in soft daylight, 35mm film look",
"aspect_ratio": "4:5",
"model_id": "15012C538F503CE2EBFC2C8547B268C75CCDAFF7A281DB55399940FF1D70E21D"
}),
}).then((response) => response.json());
while (['queued', 'in_progress'].includes(request.status)) {
await new Promise((resolve) => setTimeout(resolve, 3000));
request = await fetch(request.status_url, { headers }).then((r) => r.json());
}
console.log(request.status, request.result?.url);Models
Stable Diffusion v1.5 model_id values
Send model_id to pick a variant. A request without one runs the default.
| model_id | Name | Default |
|---|---|---|
| 15012C538F503CE2EBFC2C8547B268C75CCDAFF7A281DB55399940FF1D70E21D | Stable Diffusion v1.5 | Yes |
Options
Stable Diffusion v1.5 parameters
Allowed values across all variants; a variant may offer fewer. The docs list the options per variant.
| Field | Values |
|---|---|
| aspect_ratio | 21:9, 16:9, 3:2, 5:4, 1:1, 4:5, 2:3, 9:16, 9:21 |
Inputs
Media inputs Stable Diffusion v1.5 accepts
Send each as an https URL, a data URL, or an upload of up to 100 MB.
| Field | Role |
|---|---|
| image | The reference image. |
More image models
Other image generation APIs on Mage
Image · from 10 Gems
Stable Diffusion v3.5 Large API
The Stable Diffusion that listens best
Image · from 10 Gems
Stable Diffusion XL API
Photoreal-tuned SDXL
Image · from 10 Gems
Z-Image API
The fastest image model on Mage
Image · from 20 Gems
Anima API
Purpose-built for anime
Image · from 35 Gems
Chroma API
Open-weights, built on Flux
Image · from 40 Gems
Flux 2 API
Long prompts and multi-reference edits
FAQ
Frequently asked questions
How much does the Stable Diffusion v1.5 API cost?
A Stable Diffusion v1.5 request at the default settings (Stable Diffusion v1.5) costs 10 Gems, about $0.01. Other resolutions, durations, and variants change the price; the response reports the exact charge. A generation that fails is refunded; one Mage's content policy blocks is not.
What is the Stable Diffusion v1.5 API endpoint?
POST https://api.mage.space/v1/stable_diffusion_v15/generate with an Authorization: Bearer header carrying your Mage API key. The response includes a status_url to poll for the result.
Which Stable Diffusion v1.5 models can I call?
15012C538F503CE2EBFC2C8547B268C75CCDAFF7A281DB55399940FF1D70E21D. The default is Stable Diffusion v1.5.
Does Stable Diffusion v1.5 support reference images or characters?
Stable Diffusion v1.5 accepts image. Stable Diffusion v1.5 takes no @handle mentions.
Can I use Stable Diffusion v1.5 from Claude or ChatGPT?
Yes. Connect the Mage MCP server to Claude, ChatGPT, Claude Code, Grok, or Cursor and ask for Stable Diffusion v1.5 by name. Your assistant reads its options with get_model and quotes the price before it generates.
How long are Stable Diffusion v1.5 results kept?
Results and inputs are kept for 30 days. Download anything you want to keep to your own storage.
Start building with Mage
One account, one Gems balance, every model. Pay only for what you generate.