XFollowListPeople, ideas and original work on X
0xAA’s avatar

WTF Academy founder and Web3 educator

0xAA

@0xAA_Science on X

Builds open-source learning materials for Solidity and ethers.js, and works on xAPI, an API gateway for AI agents.

Why read 0xAA?

0xAA's educational work gives you code to inspect as you learn. The WTF Solidity course moves from a first contract through types, functions and storage into token standards and contract interactions. Its examples make the account useful for readers who want to understand how Ethereum applications are built.

The ethers.js lesson on identifying ERC-721 contracts is a smaller starting point. It shows how a program checks a contract's supported interfaces instead of relying on its name. His GitHub profile also connects this educational work with xAPI, his project for bringing APIs into agent workflows.

Start with the original

Selected work

  1. Collaborative course

    A structured route through Solidity with tutorial text and example contracts. Begin with HelloWeb3 and then follow the fundamentals in order.

    Cite this selection

    XFollowList, “WTF Solidity: the open-source course” reading notes in the 0xAA profile. https://xfollowlist.com/people/0xaa#work-2d47f55c122f

    The linked work is the original source; this permalink identifies XFollowList’s reason to read it. Original publication date is unknown.

    Profile-source checking date and references · Dated reading map

  2. Tutorial

    A focused lesson on reading contract information and checking ERC-165 interface support. The page explains the boundary between a name and a supported interface.

    Cite this selection

    XFollowList, “Identifying ERC-721 contracts with ethers.js” reading notes in the 0xAA profile. https://xfollowlist.com/people/0xaa#work-a7976a606190

    The linked work is the original source; this permalink identifies XFollowList’s reason to read it. Original publication date is unknown.

    Profile-source checking date and references · Dated reading map

Projects & roles

  • WTF Academy

    The open-source education project identified in his GitHub profile and course materials.

  • xAPI

    His GitHub profile identifies him as the founder of an API gateway for agents.

Onchain

Linked wallets

Community rating

50

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Sources & further reading

Profile sources checked . This describes checking these references, separately from the publication dates of selected works.

Cite this profile’s source check

XFollowList, 0xAA profile sources. Sources checked 2026-10-11. https://xfollowlist.com/people/0xaa#sources-checked