Agreed. I can't justify a use case for CAPTCHAs outside the browser, I was just pointing out that such an API is very conceivable. As silentbicycle said, a CAPT

Agreed. I can't justify a use case for CAPTCHAs outside the browser, I was just pointing out that such an API is very conceivable. As silentbicycle said, a CAPTCHA is for preventing scripting, so you would (hopefully) still need a human somewhere in the process.