shieldfy/API-Security-Checklist
Checklist of the most important security countermeasures when designing, testing, and releasing your API
What it does
This project is a practical checklist that helps teams avoid the most common security mistakes when building APIs — the behind-the-scenes connections that let apps and services talk to each other. Think of it as a pre-flight safety checklist, covering everything from how users log in to how sensitive data is protected, translated into 30+ languages for global teams.
Why it matters for PMs
Security breaches involving APIs are among the most costly and reputation-damaging incidents a company can face, and this resource gives product and engineering teams a clear, battle-tested standard to build against before launch. With over 23,000 stars on GitHub, it signals strong industry consensus — meaning your competitors and their teams are likely already using it as a benchmark.
Early stage — limited signal data
Score updated Feb 18, 2026
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