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.
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.
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.
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.
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