Testing for your FastAPI project
Expert testing for FastAPI applications. We find and fix FastAPI-specific bugs and performance issues that affect production apps. From $19.
FastAPI testing issues we find
Common testing problems specific to FastAPI applications.
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.
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.
No rate limiting on public endpoints
Public API endpoints (especially AI wrapper endpoints that call OpenAI or similar) have no rate limiting, so a single user can run up massive costs.
Database connections not pooled
Creating a new database connection on every request instead of using a connection pool, causing connection exhaustion under load.
What our FastAPI testing covers
Unit tests
Tests for individual functions, utilities, and business logic. Catch bugs at the smallest level.
Component tests
Tests for React components — rendering, user interactions, state changes, and edge cases.
Integration tests
Tests for API endpoints, database operations, and multi-step workflows.
End-to-end tests
Full user flow tests that simulate real user behavior — signup, purchase, and critical paths.
Test infrastructure
Setting up Jest, Vitest, Playwright, or Cypress with proper configuration and CI integration.
CI/CD integration
Running tests automatically on every push so broken code never reaches production.
AI tools that generate FastAPI code
Start with a self-serve audit
Get a professional testing of your 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.
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
Do you offer testing for FastAPI projects?
Yes. We provide testing specifically tailored to FastAPI applications. We understand FastAPI's ecosystem and the common issues that need attention before production use.
What FastAPI testing issues do you typically find?
Common testing issues in FastAPI projects include: blocking calls inside async endpoints, pydantic models without validation constraints, no rate limiting on public endpoints, database connections not pooled. We identify and fix all of these.
How do I get started with FastAPI testing?
Start with our code audit ($19) to get a clear picture of your FastAPI project's testing needs. We'll provide a prioritized report and a fixed quote for any follow-up work.
How much does FastAPI testing cost?
Start with our code audit at $19 to get a prioritized report of issues. From there, testing work is scoped with a fixed quote based on your project's specific needs. No hourly billing or surprises.
Related resources
Need FastAPI testing help?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.