[Feature]: Add experimental WebMCP support for Chromium #40234

🚀 Feature Request

Add support for the WebMCP API, an experimental Chromium 149+ feature that lets web pages register tools (via JavaScript or HTML

Puppeteer has shipped support for it (docs). This proposal adds equivalent functionality to Playwright for Chromium browsers.

Example

No response

Motivation

WebMCP enables web developers to expose page-level tools to AI agents. As browsers add native agent support, testing frameworks need to let developers verify their tools work correctly in automated test suites.