From example to implementation
A guide to the callable web.
Understand the current APIs, connect a supported browser, and build tools that match your application.
What is WebMCP?
Understand WebMCP, how browser tools work, and when to use WebMCP versus a remote MCP server.
WebMCP browser support & setup
Check WebMCP API availability and learn how to enable native tools, distinguish local runs, and diagnose registration failures.
Build a WebMCP tool with JavaScript
Implement document.modelContext.registerTool with runtime validation, shared application state, error responses, and lifecycle cleanup.
WebMCP Tutorial: Build an Appointment Booking Flow
Learn how to connect WebMCP tools to appointment availability, visible confirmation, reservation lookup and cancellation using a working booking playground.
Imperative vs declarative WebMCP
Compare JavaScript tool registration with annotated HTML forms and choose an appropriate WebMCP pattern.
WebMCP and SEO: discovery vs action
Plan SEO for a WebMCP demo site without assuming tool registration guarantees rankings or AI visibility.