WebMCP Kit

WebMCP Kit demo

Natural language becomes safe, typed app actions.

One deterministic click shows planning, validation, and app-owned execution. No model download or API key is required for the proof.

Surface map

One contract. Three distinct layers.

Native browser agent
Uses document.modelContext when the browser supports WebMCP.
Fallback registry
Keeps devtools, tests, and unsupported browsers inspectable.
In-page planner
Drives this visible command trace; it is not native agent access.
See a guard safely reject an impossible cart quantity →