BASELINE NowYouCanUse.com
Limited Availability WebMCP
id: document-modelcontext

document.modelContext

The document.modelContext API registers page actions that can be called by in-browser AI agents or browser extensions. Also known as 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