Add Agent Ad Protocol — open protocol for ad-supported MCP tools

[grahammccain]

Project: Agent Ad Protocol (AAP)

What it is: An open protocol and reference implementation for adding ad support to MCP server tool responses — like AdSense for MCP servers. Includes a spec, verification mechanism, and SDK for server authors to monetize tools while keeping them free for agents.

Suggested section: Protocols / Infrastructure / Tools (wherever best fits)

Thanks for maintaining this list!