Limited Availability
WebMCP
id: declarative-webmcp
Form-associated WebMCP attributes
The
toolname, tooldescription, and toolautosubmit HTML form element attributes register actions that can be called by in-browser AI agents or browser extensions. Also known as declarative WebMCP.
Baseline Status:
This feature is currently Limited and is missing in at least one major browser engine.
Desktop Browser Engine Support
Google Chrome
—
Unsupported
Mozilla Firefox
—
Unsupported
Apple Safari
—
Unsupported
Microsoft Edge
—
Unsupported
Mobile Browser Engine Support
Chrome Android
—
Firefox Android
—
Safari iOS
—
Specifications and References