How I Hosted a Production AI App for $10/Year — HuggingFace Spaces + Cloudflare Worker

A developer built a production AI application for just $10/year by combining HuggingFace Spaces (free tier) with a Cloudflare Worker (free tier) and a custom domain. The setup provides 16GB RAM, 2 vCPU, 50GB disk, and unlimited Spaces on HuggingFace, plus 100K daily requests and global CDN via Cloudflare—dwarfing the 512MB free tiers of Railway and Render. A critical Cloudflare Worker script converts HEAD requests to GET to avoid HuggingFace Spaces' 405 errors, enabling free uptime monitoring that also prevents the 48-hour inactivity sleep.

Every "deploy your AI app" tutorial sends you to Railway, Render, or Vercel. I needed something different. My app runs: None of these work on serverless platforms. After research and testing, I landed on: HuggingFace Spaces free + Cloudflare Worker free + Custom domain ~$10/year Here's why this combination is unbeatable for AI apps. | Resource | Free Allocation | |---|---| | RAM | 16GB | | CPU | 2 vCPU | | Disk | 50GB | | Spaces | Unlimited | | Sleep | After 48hrs inactivity | Full Docker support — any framework, any language. FastAPI, SSE streaming, long-running processes — all work perfectly. Compare this to Railway 512MB or Render 512MB on free tier. | Feature | Free Allocation | |---|---| | Worker requests | 100K/day | | Bandwidth | Unlimited | | SSL certificates | Auto, free | | CDN locations | 300+ globally | | Domains | Unlimited | User → yourdomain.com Cloudflare Worker → username-spacename.hf.space HF Spaces → Docker container your app → External APIs HuggingFace custom domains require Pro $9/month . The free URL username-spacename.hf.space is fine for testing but not for a real product. The fix? A Cloudflare Worker that proxies all traffic — free, instant, global. js export default { async fetch request, env, ctx { const url = new URL request.url ; const targetUrl = 'https://username-spacename.hf.space' + url.pathname + url.search; // Convert HEAD to GET for HF Spaces compatibility // Critical: monitoring tools UptimeRobot etc use HEAD requests // HF Spaces returns 405 for HEAD — this fixes it const method = request.method === 'HEAD' ? 'GET' : request.method; const newRequest = new Request targetUrl, { method: method, headers: request.headers, body: request.method === 'HEAD' ? null : request.body, } ; const response = await fetch newRequest ; const newHeaders = new Headers response.headers ; newHeaders.set 'Access-Control-Allow-Origin', ' ' ; return new Response request.method === 'HEAD' ? null : response.body, { status: response.status, statusText: response.statusText, headers: newHeaders, } ; }, }; ⚠️ The HEAD→GET conversion is not optional.Without it, UptimeRobot and other monitoring tools will report your site as DOWN even when it's perfectly healthy. HF Spaces only accepts GET requests on the root path. Create a Space at huggingface.co/spaces/new — select Docker as SDK. Your Dockerfile : FROM python:3.11-slim WORKDIR /app COPY . . RUN pip install -r requirements.txt ENV PORT=7860 EXPOSE 7860 CMD "python", "-m", "your app" Push your code: git remote add hf https://huggingface.co/spaces/username/spacename git push hf main Add API keys in Space Settings → Variables and Secrets . myapp-proxy In Cloudflare DNS, add: @ username-spacename.hf.space Add a free UptimeRobot https://uptimerobot.com/?rid=49c064d68c8652 monitor pointing to https://yourdomain.com . The HEAD→GET Worker fix ensures monitoring shows green correctly. As a bonus — UptimeRobot pings every 5 minutes keep HF Spaces awake, preventing the 48hr sleep entirely | Service | Monthly Cost | |---|---| | HuggingFace Spaces | $0 | | Cloudflare DNS + Worker + SSL | $0 | | UptimeRobot monitoring | $0 | | Domain name | ~$0.83 | Total | ~$0.83/month | For comparison: Railway, Render, and Vercel dominate tutorials because they have marketing budgets. HuggingFace Spaces + Cloudflare is genuinely better for AI apps: ✅ 16GB RAM vs 512MB on competitors ✅ Full Docker support ✅ No process killing or timeout limits ✅ Global CDN via Cloudflare ✅ Auto SSL ✅ $0.83/month total The only cost is your domain name. Everything else is free. I used this exact stack to deploy my own AI DevOps tool — feel free to check it out at deepshell.cloud https://deepshell.cloud . If this helped you, drop a ❤️ and follow for more DevOps + AI content.