Deploy your FastAPI app to Render
Step-by-step deployment help for FastAPI apps on Render. We fix FastAPI-specific deployment issues, configure Render, and get your app live. From $19.
FastAPI issues we fix before deploying
Common FastAPI problems that affect Render deployments.
Blocking calls inside async endpoints
Synchronous database calls, file operations, or HTTP requests inside async def endpoints block the entire event loop, making your API unresponsive under load.
Missing authentication on endpoints
API routes that handle sensitive data or actions without any auth middleware — Depends() for authentication is simply not included in the route definition.
No CORS configuration
CORSMiddleware either missing (blocking all cross-origin requests) or set to allow_origins=['*'] (allowing any website to call your API).
Pydantic models without validation constraints
Request models that accept any string length, any number range, and any format. No Field() constraints, so invalid data flows through your system.
Render deployment issues we check for
Common Render problems that break FastAPI apps in production.
Free tier services spin down after 15 minutes
Render's free web services sleep after inactivity, causing 30-50 second cold starts that break webhook integrations and frustrate users.
Build command not set for monorepo projects
AI-generated monorepos lack a root directory or build filter configuration, causing Render to build from the wrong directory or skip the project entirely.
Persistent disk not attached for file uploads
User-uploaded files disappear on redeploy because AI tools write to the ephemeral filesystem instead of attaching a Render persistent disk.
Environment groups not linked across services
Database URLs and shared secrets are duplicated across services instead of using Render environment groups, leading to configuration drift.
Start with a self-serve audit
Get a professional review of your FastAPI project before deploying to Render.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
How do I deploy a FastAPI app to Render?
We handle FastAPI deployments to Render end to end. Start with our code audit ($19) to identify deployment blockers specific to your FastAPI project, then we configure Render, fix issues, and get your app live in production.
What FastAPI issues affect Render deployments?
FastAPI projects commonly have blocking calls inside async endpoints and missing authentication on endpoints. On Render, these combine with free tier services spin down after 15 minutes and build command not set for monorepo projects to cause deployment failures.
Can SpringCode deploy my FastAPI project to Render?
Yes. We specialize in deploying FastAPI applications to Render. We audit your codebase for FastAPI-specific issues, configure Render correctly, and handle the full deployment so your app runs reliably in production.
What does FastAPI deployment to Render cost?
Our code audit ($19) identifies all Render deployment blockers in your FastAPI project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
Other techs on Render
Deploy FastAPI elsewhere
Need help deploying FastAPI to Render?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.