Devin + API / Backend Service

Built a api / backend service with Devin?
We'll make it production-ready.

APIs are the backbone of modern applications — mobile apps, SPAs, integrations, and other services all depend on your API being secure, fast, and reliable. AI tools can scaffold API endpoints quickly, but production APIs need authentication, input validation, rate limiting, documentation, and monitoring that AI tools consistently skip.

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API / Backend Service challenges in Devin apps

Building a api / backend service with Devin is a great start — but these challenges need attention before launch.

Authentication and API keys

Every endpoint needs to verify the caller's identity. AI tools create endpoints without auth, or with auth that's easy to bypass. You need token-based auth, API key management, and proper session handling.

Input validation

Every parameter, request body, and header value must be validated before use. AI-generated APIs trust client data, which leads to injection attacks, data corruption, and crashes from unexpected input.

Rate limiting and abuse prevention

Without rate limits, anyone can hammer your API — brute-forcing passwords, scraping data, or running up your infrastructure costs. Rate limiting must be per-user and per-endpoint.

Error handling and status codes

APIs should return appropriate HTTP status codes (400 for bad input, 401 for unauthorized, 404 for not found, 500 for server errors) with helpful error messages. AI tools often return 200 for everything or expose internal error details.

Documentation

APIs without documentation are unusable. Auto-generated OpenAPI/Swagger docs from your code are the minimum. AI tools rarely set up API documentation.

Versioning and backwards compatibility

Once other services depend on your API, you can't change it freely. You need a versioning strategy from the start so you can evolve the API without breaking existing clients.

What we check in your Devin api / backend service

Authentication on every endpoint — no unprotected routes
Input validation — every parameter validated with schema
Rate limiting — per-user, per-endpoint limits configured
Error responses — correct status codes, no internal detail leaks
SQL injection and injection attacks — parameterized queries
CORS configuration — restricted to authorized origins
Database performance — query optimization, connection pooling, indexes
Logging and monitoring — structured logs, error tracking
API documentation — OpenAPI/Swagger spec generated

Common Devin issues we fix

Beyond api / backend service-specific issues, these are Devin patterns we commonly fix.

highSecurity

Autonomous security decisions

Devin makes security-related decisions without human review — choosing auth strategies, setting permissions, and configuring access controls that may be inadequate.

highCode Quality

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.

mediumBugs

Workarounds instead of fixes

When Devin encounters an error, it sometimes adds workarounds that mask the root cause rather than fixing the underlying issue.

mediumPerformance

Inefficient retry patterns

Devin's debugging approach sometimes results in retry logic and fallback patterns that hide errors rather than resolving them, impacting performance.

Start with a self-serve audit

Get a professional review of your Devin api / backend service at a fixed price.

External Security Scan

Black-box review of your public-facing app. No code access needed.

$19
  • OWASP Top 10 vulnerability check
  • SSL/TLS configuration analysis
  • Security header assessment
  • Expert review within 24h
Get Started

Code Audit

In-depth review of your source code for security, quality, and best practices.

$19
  • Security vulnerability analysis
  • Code quality review
  • Dependency audit
  • Architecture review
  • Expert + AI code analysis
Get Started
Best Value

Complete Bundle

Both scans in one package with cross-referenced findings.

$29$38
  • Everything in both products
  • Cross-referenced findings
  • Unified action plan
Get Started

100% credited toward any paid service. Start with an audit, then let us fix what we find.

Frequently asked questions

Can I build a api / backend service with Devin?

Devin is a great starting point for a api / backend service. It handles the initial scaffolding well, but api / backend services have specific requirements — authentication and api keys and input validation — that need professional attention before launch.

What issues does Devin leave in api / backend services?

Common issues include: autonomous security decisions, compounding architectural errors, workarounds instead of fixes. For a api / backend service specifically, these issues are compounded by the need for authentication and api keys.

How do I make my Devin api / backend service production-ready?

Start with our code audit ($19) to get a clear picture of what needs fixing. For most Devin-built api / backend services, the critical path is: security review, then fixing core flow reliability, then deployment. We provide a fixed quote after the audit.

How much does it cost to fix a Devin-built api / backend service?

Our code audit is $19 and gives you a complete report of issues. Fixes start at $199 with our Fix & Ship plan. For larger api / backend service projects, we provide a custom fixed quote after the audit — no hourly billing.

Get your Devin api / backend service production-ready

Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.

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