FastAPI app built with Devin? Let’s review it.
Expert code review for FastAPI apps built with Devin. We find Devin-specific bugs, fix FastAPI security issues, and optimize performance. From $19.
Devin issues we find in FastAPI projects
Problems specific to Devin's code generation patterns when building FastAPI apps.
Autonomous security decisions
Devin makes security-related decisions without human review — choosing auth strategies, setting permissions, and configuring access controls that may be inadequate.
Compounding architectural errors
When Devin makes an early architectural mistake, it builds subsequent features on top of it. By the time you notice, the issue is deeply embedded in the codebase.
Workarounds instead of fixes
When Devin encounters an error, it sometimes adds workarounds that mask the root cause rather than fixing the underlying issue.
Inefficient retry patterns
Devin's debugging approach sometimes results in retry logic and fallback patterns that hide errors rather than resolving them, impacting performance.
FastAPI issues we check for
Common FastAPI problems that affect production readiness.
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.
Start with a self-serve audit
Get a professional review of your Devin FastAPI project at a fixed price.
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.
Frequently asked questions
Can you review FastAPI code generated by Devin?
Yes. We regularly audit FastAPI projects built with Devin and understand the specific patterns and issues it introduces. Our review covers security, performance, and deployment readiness.
What FastAPI issues does Devin typically create?
Common issues in Devin-generated FastAPI code include: autonomous security decisions, compounding architectural errors, workarounds instead of fixes. Combined with FastAPI-specific concerns like blocking calls inside async endpoints and missing authentication on endpoints.
How do I make my Devin FastAPI project production-ready?
Start with our code audit ($19) to get a prioritized list of issues. For Devin-built FastAPI projects, the typical path is: fix security gaps, address FastAPI-specific performance issues, then configure deployment. We provide a fixed quote after the audit.
How much does it cost to review Devin-generated FastAPI code?
Our code audit starts at $19 and covers security, performance, architecture, and deployment readiness. For fixes, our Fix & Ship plan is $199. Larger projects get a custom fixed quote — no hourly billing or surprises.
Related resources
Need help with your Devin FastAPI project?
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