Bulk Image Generation with Midjourney API
Stop generating images one by one. Use our REST API to submit hundreds of Midjourney prompts programmatically, queue them in our async pipeline, and receive results via webhook — automatically, at scale.
Common Use Cases
E-commerce Product Imagery
Generate lifestyle shots, product variants, and background alternatives at scale. Replace manual photoshoots with programmatic image pipelines.
Social Media Content
Pre-generate weeks of visual content in minutes. Submit prompts for each post, receive image URLs, and schedule automatically.
SaaS & App Features
Power user-facing image generation features. Accept user prompts, queue jobs, and deliver results — all without managing Discord.
NFT & Digital Collections
Generate large collections of unique images with varied prompts. Automate the full pipeline from prompt to metadata.
Game Asset Production
Create concept art, environment textures, character variations, and UI elements in bulk for faster game development cycles.
Marketing Creative Testing
Generate multiple creative variants for A/B testing. Different styles, compositions, and color treatments — all from one codebase.
Building a Bulk Generation Pipeline
Submit your batch
// Submit multiple jobs in a loop
const prompts = [
"minimalist product shot, white background",
"lifestyle photo, outdoor setting",
"close-up detail, studio lighting",
];
const taskIds = await Promise.all(
prompts.map(prompt =>
fetch('https://api.midjourney-api.com/v1/submit-jobs', {
method: 'POST',
headers: { Authorization: 'Bearer YOUR_KEY' },
body: JSON.stringify({ prompt, webhookUrl: YOUR_HOOK }),
}).then(r => r.json())
)
);Receive results via webhook
// Your webhook endpoint receives results as they complete
app.post('/webhook', (req, res) => {
const { taskId, status, imageUrl } = req.body;
if (status === 'completed') {
// Save imageUrl to your database
db.images.insert({ taskId, imageUrl });
// Trigger downstream automation
notifyUser(taskId);
}
res.sendStatus(200);
});How the Pipeline Works
Your App
│
├─ POST /v1/submit-jobs (prompt 1) ──► taskId_1
├─ POST /v1/submit-jobs (prompt 2) ──► taskId_2
└─ POST /v1/submit-jobs (prompt N) ──► taskId_N
Async Queue (processes up to 10 in parallel)
│
├─ Job 1 complete ──► POST your-app.com/webhook { taskId_1, imageUrl }
├─ Job 2 complete ──► POST your-app.com/webhook { taskId_2, imageUrl }
└─ Job N complete ──► POST your-app.com/webhook { taskId_N, imageUrl }Frequently Asked Questions
How many images can I generate at once with the API?
You can run up to 10 concurrent image generation jobs simultaneously. For larger batches, you submit jobs to the async queue and receive results via webhook as each job completes.
How do I handle bulk image generation results?
Each job returns a taskId immediately. You can poll the job status endpoint or configure a webhook URL to receive results automatically when each image is ready. Webhooks are recommended for bulk workflows.
What are the best use cases for bulk Midjourney image generation?
E-commerce product imagery, social media content pipelines, NFT collection generation, game asset creation, marketing creative variants, and any workflow requiring many AI-generated images at scale.
Can I use different prompts for each image in a batch?
Yes. Each API call accepts its own prompt, aspect ratio, model (standard or Niji), and generation mode. You can submit completely different prompts for each job in your batch.
Related Pages
Ready to Generate Images at Scale?
Submit your first bulk batch in minutes. Free API key, no credit card required. Webhook delivery included on all plans.