How to Stop Leaking API Keys: A Practical Guide for Frontend and Full-Stack Developers
Keep private API keys out of browser bundles, protect your backend proxy from abuse, scan for exposed credentials, and respond quickly when a key leaks.
Architecture, engineering, and the decisions behind reliable APIs. Explore the systems and ideas that help you build.
Keep private API keys out of browser bundles, protect your backend proxy from abuse, scan for exposed credentials, and respond quickly when a key leaks.
See how monthly API subscriptions, a shared prepaid wallet, and optional overages work together—with a clear example of what you pay and when requests stop.