Good on their promise, Capcom USA has uploaded every episode of Mega Man NT Warrior and Mega Man NT Warrior Axess on YouTube -- for free.
Do keep in mind that the first episode of Axess is presented in Japanese with English subtitles. For reasons not currently known, the dubbed version is unavailable. Also of note, Capcom went so far as to include Axess episode 30 "AquaMan in Love", which never aired in the United States during the show's tenure at Kids WB.
The Mega Man NT Warrior Twitch marathon presented by Capcom USA concludes tomorrow, March 24th. Although there is no official confirmation, several fans are optimistic that the event will end with news regarding availability of the series on additional streaming platforms or a DVD/Blu-ray release. We'll keep an ear to the ground.