ProxyCeptor for QA Engineers: Test Every API Failure Without Waiting on Backend
QA engineers use ProxyCeptor to create repeatable API scenarios, such as "checkout returns 503", "orders list is empty" or "profile loads in 8 seconds", as named rules they toggle in one click. Rules run in Chrome and on Smart TVs without certificates, sync across the QA team through a cloud workspace, and pair with session replay for bug reports.
ProxyCeptor for Frontend Developers: Build Against APIs That Do Not Exist Yet
Frontend developers use ProxyCeptor to keep building when the API is missing, wrong or slow: mock a new endpoint from the agreed contract, deep-merge a flag into a live response, force error and loading states, or redirect production UI to a local backend. It works with any framework because it intercepts fetch and XHR at runtime, with no code or config changes.
ProxyCeptor for Smart TV and OTT Teams: Debug Tizen, webOS and Android TV Without Certificates
Smart TV and OTT teams use the ProxyCeptor SDK, a script loaded into the TV web app, to intercept and mock API calls on Samsung Tizen, LG webOS, Android TV WebViews and similar platforms without installing root certificates or configuring a Wi-Fi proxy. Rules are managed from the cloud dashboard and reach every test TV through a workspace API key.
ProxyCeptor for Security Testers: A Lightweight In-Browser Interceptor Next to Burp
Security testers use ProxyCeptor as a lightweight companion to Burp Suite: persistent in-browser rules that swap object IDs, change roles in JSON responses, strip security headers or inject scripts, without routing traffic through a desktop proxy. For scanning, fuzzing and manual request repeating, Burp or ZAP remain the right tools.
ProxyCeptor for Backend and API Developers: Test Contract Changes Against the Real UI
Backend and API developers use ProxyCeptor to try a response change against the real frontend before deploying: deep-merge a new field, remove a deprecated one, or return a new error code, and watch the UI react. The same workspace includes Commander, a browser-based REST client, and a server-side forwarder for CORS-restricted calls.
Intercept your first request in under a minute
Create a free ProxyCeptor account to mock, delay, block and rewrite API traffic, then share the same rules with your team.