Nice! Wish I could use it - but I'm checking for available wilderness permits not campground permits (in Yosemite to hopefully hike the John Muir Trail this summer)
it was wilderness permits for the backcountry, not campground permits. but the api works the same for either permit type. i can hook you up if you happen to catch this message, i don't see an email on your profile. email me at smcalilly@gmail.com