Cloudflare has joined the browser race, but its new offering is not aimed at human users. The company launched Kitesurf, a cloud-hosted browser designed specifically for AI agents.

According to Cloudflare, a browser for AI agents does not need visual elements like themes, tabs, or extensions. Instead, it must manage context windows, performance, token costs, and scalability, and it faces a different threat model that includes vulnerabilities like prompt injection attacks.

Kitesurf runs entirely on Cloudflare’s serverless platform, Workers. It is available for free while in beta through Browser Run, which lets developers programmatically control and interact with headless browser instances on Cloudflare’s network. That means AI developers can build software that navigates websites, fills out forms, and completes other browser-based tasks without building their own browser.

Cloudflare says Kitesurf is more efficient in CPU and memory consumption than Chromium for common agentic tasks such as screenshots and HTML extraction. The browser is built from a modular rendering engine from Blitz, Firefox’s CSS parser Stylo, and Boa JS, a Rust ECMAScript engine, with everything else running inside Workers.

Cloudflare also says the open source Rust headless engine Obscura inspired the project; the first proof of concept was a port of Obscura to Workers. Kitesurf already passes more than 215,000 web platform tests, with hundreds more added each week, and it correctly renders pages such as TodoMVC, Wikipedia, Hacker News, the Cloudflare Blog, and much of the Cloudflare dashboard.

Source: TechCrunch