Thursday, February 19, 2026

WebMCP API extends internet apps to AI brokers

World Huge Internet Consortium (W3C) members together with Google and Microsoft have launched the WebMCP API, a JavaScript interface that enables internet functions to supply client-side “instruments” to AI brokers. The API would allow brokers to work together immediately with internet pages and take part in collaborative workflows with human customers inside the similar internet interface.

WebMCP is out there for early preview at Google, mentioned Google’s Andre Cipriani Bandarra, developer relations engineer for Chrome and the online in a February 10 weblog publish. “WebMCP goals to supply a typical method for exposing structured instruments, guaranteeing AI brokers can carry out actions in your web site with elevated pace, reliability, and precision,” Bandarra mentioned.

A draft group group report on WebMCP was printed on February 12 by the W3C Internet Machine Studying Neighborhood Group. The WebMCP API is described within the report as a JavaScript interface that lets internet builders expose internet software performance as “instruments,” that means JavaScript features with pure language descriptions and structured schemas that may be invoked by brokers, browser’s brokers, and assistive applied sciences. Internet pages that use WebMCP might be considered as Mannequin Context Protocol (MCP) servers that implement instruments in client-side script as a substitute of on the again finish, enabling collaborative workflows the place customers and brokers work collectively inside the similar internet interface, in response to the report. Editors of the report embody Khusal Sagar and Dominic Farolino of Google and Brandon Walderman of Microsoft. The specification is neither a W3C commonplace nor on the W3C Requirements Observe, the report says.

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