VerifyWall is an API service that protects online platforms from fake sign-ups, disposable emails, VPN abuse, and bot registrations. A single endpoint cross-checks email addresses, domains, and IP addresses against threat intelligence to return a clear risk assessment.
Problem
Many SaaS products only discover account abuse after it has already created support, billing, moderation, or deliverability problems. The product needed to make that risk visible at sign-up time without adding friction for legitimate users.
The API had to be simple enough for developers to adopt quickly, but reliable enough to sit inside a critical onboarding flow.
Role
I designed and built the core product as a full-stack SaaS application. That included the public API, authentication, dashboard flows, risk checks, billing foundations, documentation, deployment, and the surrounding operational pieces needed to keep the service useful.
Stack
Laravel, PHP, React paired with Inertia, TailwindCSS, external data providers, background jobs, API authentication, and deployment automation.
Implementation highlights
The main work was turning multiple risk signals into a predictable API response. That meant normalizing provider data, handling failures carefully, and keeping the response shape clear enough that customers can make product decisions from it.
The application also needed the usual SaaS foundations: account management, usage tracking, API keys, documentation, and internal visibility into how checks are being used.
Outcome
VerifyWall is a focused SaaS product with a clear developer-facing API and a practical integration path for platforms that need stronger sign-up protection.
Related services: Full-Stack Development, MVP Development, and API & Integrations.