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WebMCP
also Web Model Context Protocol or document.modelContext
Definition of WebMCP
-
: a proposed browser API that lets a website expose structured tools directly from its page so browser-based AI agents can discover and call those tools instead of guessing how to click through the human interface
- The travel site added WebMCP tools so a browser agent could search itineraries without scraping buttons and forms.
- WebMCP helped the assistant work inside the tab the user already had open, while the site still controlled which actions were available.
Two meanings, one word
In everyday English
Web refers to websites and browser pages; a protocol is an agreed way for systems to communicate.
In AI
A proposed browser API that lets a website expose structured tools directly from its page so browser-based AI agents can discover and call those tools instead of…
Origin & history
The WebMCP specification was published as a W3C Web Machine Learning Community Group draft report on 2 October 2026, edited by contributors from Microsoft and Google. Chrome developer documentation and Cloudflare's 2026 developer preview helped bring the term into broader agent-tooling discussion.
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Cite this entry
"WebMCP." AI Dictionary, Dadgogo, https://dadgogo.com/dictionary/webmcp/. Accessed 7 Oct. 2026.