Why not usa.gov or something similar? From a geographical standpoint, America refers to the entire landmass of the Western Hemisphere, which is made up of North America and South America.
Though I do wish it were called chat.gov or america-ai.gov or something else actually descriptive of what it is
Not to mention the only context you ever hear people using America to refer to both South and North American continents is people complaining that it should be only used in this way.