12 - Inter-Server Collaboration and EventBus

How MCP servers communicate: EventBus with 29 typed events, ClientManager for cross-server invocation, collaboration matrix.

What you'll learn

• EventBus architecture and the Publish/Subscribe pattern in MCP Suite
• The 29 typed events organized across 11 domains
• The collaboration matrix: who publishes, who subscribes
• ClientManager for synchronous RPC calls between servers
• Server classification: bi-directional, publisher-only, subscriber-only, pass-through

This article is part of the MCP series on federicocalo.dev.

Read the full article

The complete article (15 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 12 - Inter-Server Collaboration and EventBus

https://federicocalo.dev/en/blog/mcp-inter-server-collaboration-eventbus

By Federico Calò — Software Developer & Technical Writer