Has anyones company successfully implemented what is being described as ACP or an AI Mesh?

Has anyones company implemented what is generally described as ACP or what McKinsey describes as an AI Mesh?

The concept is a centralized space for AI Agents to “talk to each other”. The link below is a general infographic comparing it to MCP and A2A:

https://devnavigator.com/2025/11/01/how-ai-agents-communicate-the-core-protocols-that-enable-collaboration/