CLOUDFLARE has updated Kitesurf, its browser for AI agents that runs entirely on Cloudflare Workers. The main addition is support for WebMCP, allowing websites to expose functions directly to agents rather than requiring them to simulate clicks and interact with page elements. Cloudflare says Kitesurf can use tools such as Cloudflare Radar’s `navigate-to` and `set-location` functions, and provides a public playground for testing. Developers can also connect an agent to Kitesurf through the Chrome DevTools MCP integration.
The company has added support for further web standards, including CSS Layout, CSSOM, CSS Typed OM, custom elements, URL-based module resolution, JSON modules and import maps. Iframe handling has also been improved. Cloudflare says Kitesurf now passes more than 730,000 Web Platform Test subtests, 500,000 more than at launch.
Internal optimisations to JavaScript and DOM operations, timers, memory handling and font loading have reportedly kept wall-clock time and CPU use broadly in line with launch benchmarks despite the added capabilities.
Kitesurf now has full coverage across Cloudflare Browser Run’s CDP, Playwright, Puppeteer and MCP interfaces. Quick Actions such as screenshots and PDF generation can be called from Workers using `env.BROWSER.quickAction()`. A terminal version is available through Homebrew and can render pages using Kitty graphics or ANSI text. Kitesurf is free while in beta, subject to per-account limits. Cloudflare says it plans to open-source the project, but has not provided a date.