We built Aidress, it addresses the thesis outlined in YC's "software for agents" request (https://www.ycombinator.com/rfs#software-for-agents)
While messaging (google a2a) and settlement (coinbase x402) exist, crossing org boundaries require an operational coordination layer. These protocols break with unknown agents and are not universal. Aidress serves as a open DNS and trust registry allowing agents dynamically find, verify and transact with any other agent. ITS BUILT for agents, works over MCP, SDK, HTTP.