If you’re integrating challenge-based protections, Google’s Recaptcha V2 is familiar to many developers and comes with official guidance and testing modes so you can work without compromising production safeguards. Use the documented APIs, server-side verification, and the test keys provided by the vendor for development—these allow automation during building and testing without attempting to subvert protections meant for live users. For people with accessibility needs, providers also offer recommended flows and support to ensure legitimate users aren’t blocked.