Frontier Protocols

What is MCP (Model Context Protocol)?

Answer

Model Context Protocol (MCP) is an open standard introduced by Anthropic that lets AI agents connect to external data sources and tools through a uniform interface. Sites publish an MCP Server Card at /.well-known/mcp-server-card declaring an MCP endpoint, which agents can then call to retrieve data or perform actions.

What MCP enables

Agents that speak MCP can connect to any compliant server and immediately call its tools and read its resources. The protocol replaces bespoke integrations with a uniform interface that scales across thousands of services.

How to advertise MCP support

Publish a server card at /.well-known/mcp-server-card describing the endpoint, available tools and resources, and authentication requirements. The Spacemen Digital AI Agent Readiness Check tests for this and 22 other frontier standards.

Why it matters for AEO

MCP is one of the foundational standards of the agentic web. Brands that publish MCP server cards become reference implementations for the agents being built today. The first-mover advantage is significant.

Want help shipping AEO into your site?

Run the free 50-signal AI Agent Readiness Check or book a free scoping call.

Score my site