WebMCP lets websites publish structured tools for AI agents

WebMCP gives web developers a standard way to publish structured tools that AI agents can call with structured inputs, instead of interpreting screenshots or page structure.

Developers register a tool through document.modelContext with a name, description, input schema, and execute function that reuses existing application logic.

The browser makes the tools available to a supported agent while the page is active, and the article says WebMCP is distinct from MCP.