I looked into that and found references to The Federalist Papers, and a link that actually loads those specific works. Those works were clearly shown to be specifically not written by people supporting Federalism, rather those people writing The Federalist Papers were supporting Consolidation of the Independent States into a Nation-State: Nationalism.

I also looked into the link the UndergroundUSA site has for so-called "Anti" Federalist Papers, but the link goes to a different site, apparently requiring a membership, and there was no direct link to the works published by the actual Federalists who supported Federalism, such as George Mason, Patrick Henry, Robert Yates, Richard Henry Lee, etc.

June 14, 1788
Patrick Henry:
"Mr. Chairman, it is now confessed that this is a national government. There is not a single federal feature in it. It has been alleged, within these walls, during the debates, to be national and federal, as it suited the arguments of gentlemen.
"But now, when we have heard the definition of it, it is purely national."

Papers of Dr. James McHenry on the Federal Convention of 1787.
""Mr. E. Gerry. Does not rise to speak to the merits of the question before the Committee but to the mode.
A distinction has been made between a federal and national government. We ought not to determine that there is this distinction for if we do, it is questionable not only whether this convention can propose an government totally different or whether Congress itself would have a right to pass such a resolution as that before the house. The commission from Massachusets empowers the deputies to proceed agreeably to the recommendation of Congress. This the foundation of the convention. If we have a right to pass this resolution we have a right to annihilate the confederation."

FRIDAY, June 20, 1788
Melancton Smith
"He was pleased that, thus early in debate, the honorable gentleman had himself shown that the intent of the Constitution was not a confederacy, but a reduction of all the states into a consolidated government. He hoped the gentleman would be complaisant enough to exchange names with those who disliked the Constitution, as it appeared from his own concessions, that they were federalists, and those who advocated it were anti-federalists."

Somethings never change. RINO, DINO, FINO, Fascists and Marxists fraudulently (treason at that level) claiming to be Republicans and Democrats.