FastAPI Anleitung Best Hosting for FastAPI (2026)
Compare the best hosting platforms for FastAPI. We review Railway, Render, Fly.io, and serverless options with ASGI support and deployment patterns.
FastAPI requires ASGI servers (Uvicorn, Hypercorn) and platforms that support async Python. We've evaluated hosting options from PaaS to serverless.
Warum es wichtig ist
FastAPI's async performance shines with the right hosting. You need platforms supporting ASGI, proper worker configuration, and optional auto-scaling for async workloads.
Wichtige Überlegungen
ASGI Server Support
FastAPI needs Uvicorn, Hypercorn, or similar ASGI server. Most platforms auto-detect Python and can run Uvicorn.
Worker Configuration
Uvicorn workers, Gunicorn with Uvicorn workers, or multiple containers. Tune for your workload.
Serverless Option
FastAPI works on AWS Lambda (with Mangum), Vercel Functions, and Modal. Good for variable traffic.
Background Tasks
FastAPI has built-in BackgroundTasks, but for heavy work, you need separate workers (Celery, ARQ).
Websockets
If using FastAPI websockets, ensure your platform supports persistent connections.
Unsere Empfehlungen
Railway
Beste Gesamtlösung Ausgezeichnet Unterstützung Offizielles SDKRailway auto-detects FastAPI and runs Uvicorn. Add PostgreSQL and Redis with one click. $5/month free credit. Excellent DX.
railway up 
Render
Bester Kostenloser Plan Ausgezeichnet Unterstützung Offizielles SDKRender offers free web services with spin-down. Native FastAPI detection. Good for MVPs and side projects.
render deploy 
Fly.io
Beste für Global Ausgezeichnet Unterstützung Offizielles SDKFly.io deploys containers globally. Excellent for low-latency APIs. Built-in PostgreSQL. 3 free VMs.
fly launch 
Modal
Beste Serverless Ausgezeichnet Unterstützung Offizielles SDKModal is built for Python. Run FastAPI as serverless functions with GPU support. Great for ML APIs. Pay per second.
pip install modal && modal deploy 
Vercel
Beste für Einfache APIs Gut UnterstützungVercel Functions support Python. Good for simple FastAPI endpoints. Limited execution time. Pair with external DB.
vercel deploy Schnellvergleich
| Service | TypeScript | Edge | Kostenlose Stufe | Einrichtungszeit |
|---|---|---|---|---|
| Railway | none | ✓ | $5/month credit | 10 min |
| Render | none | ✓ | Free (spin-down) | 15 min |
| Fly.io | none | ✓ | 3 VMs free | 15 min |
| Modal | none | ✓ | $30/month credit | 10 min |
| Vercel | none | — | Generous | 5 min |
Schnellstart
FROM python:3.12-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY . .
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]Häufige Integrationsmuster
Railway + Supabase
FastAPI on Railway, Supabase for database and auth. Simple full-stack setup.
Fly.io Global + Redis
FastAPI on Fly.io edge, Redis for caching, PostgreSQL for persistence.
Modal + ML Models
FastAPI on Modal with GPU workers for ML inference APIs.