API / Backend Service

Harden your AI-built API for production traffic

Security review and production services for REST and GraphQL APIs built with AI coding tools. Auth, validation, rate limiting, and performance.

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.

API / Backend Service challenges we solve

The most common issues in AI-built api / backend service projects.

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 review

Our api / backend service audit covers these critical areas.

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

We work with api / backend service apps built with

Common api / backend service tech stacks

Start with a self-serve audit

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

Security Scan

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

$19
  • OWASP Top 10 checks
  • SSL/TLS analysis
  • Security headers
  • Expert review within 24h
Get Started

Code Audit

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

$19
  • Security vulnerabilities
  • Code quality review
  • Dependency audit
  • AI pattern 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.

How it works

1

Tell us about your app

Share your project details and what you need help with.

2

Get a clear plan

We respond in 24 hours with scope, timeline, and cost.

3

Launch with confidence

We fix what needs fixing and stick around to help.

Frequently asked questions

Do I need API documentation for an internal API?

Yes — even internal APIs need documentation. It reduces onboarding time, prevents integration bugs, and serves as a contract between teams. Auto-generated docs from code annotations (like Swagger) require minimal effort.

REST or GraphQL?

REST for most APIs — it's simpler, better cached, and more widely understood. GraphQL when you have complex data relationships with varying query needs (like dashboards that need different data for different views). AI tools generate both, but REST is safer for production without GraphQL-specific expertise.

Building a api / backend service?

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

Tell Us About Your App