ERC-8004 created in August 2025, which is just recently. If you look at it, in short, it extends Agent2Agent (A2A) Protocol by Google. ERC-8004 itself enable what A2A is lacking off, which is a trustless agentic network. Because A2A assumes that its running in a trustful agentic network within their own ecosystem. Which then ERC-8004 enables much more than a trustless agentic network, but also the agentic-economic.
I am currently participating in Trustless Agent (ERC-8004) Colearning that is co-hosted by LXDAO and ETHPanda. Most of the resources are actually there. But there are some resources that is not there, but I am not sure if I should add it or not. So thus I add them on my own repository here.
The ERC-8004 contracts are designed to be singleton. One ERC-8004 contract deployed on each chain. No need to deploy more ERC-8004 contract in the same chain. The official contracts repository is here. Currently there are only 4 testnets supported. And I plan to keep them easily trackable through a simple web gui.