Cloudflare's Kitesurf: a drop-in agent browser at up to 7x less RAM
Rust-on-Workers, free in beta, swaps into Puppeteer/Playwright/MCP with one flag — and Cloudflare's new agent Wallets handle the paying.
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Point your existing stack at it
Switch Puppeteer, Playwright, or MCP clients to Kitesurf by adding browser=kitesurf to your Browser Rendering endpoint — no rewrite. It's free during the open beta and burns ~3–4x less CPU and ~5–7x less memory than Chromium (the tradeoff: pages render ~1.8x slower).
What's actually under the hood
Kitesurf is Rust compiled to WebAssembly running inside Cloudflare Workers' V8 isolates instead of a full Chromium process. It stitches together Blitz (rendering), Firefox's Stylo (CSS), Parley (text layout), and Boa (JS), and already passes 215,000+ Web Platform Tests.
Know the gaps before you cut over
No video playback, WebGL, TLS bot-challenge fingerprinting, or persistent logged-in sessions yet — so keep a Chromium fallback for anything behind auth or heavy bot protection. Best fit today: scraping, screenshots, and bulk HTML extraction.
Cloudflare also handed agents a wallet
The companion launch, Cloudflare Wallets + cloudflare.pay, gives each agent a stable web identity and a virtual stablecoin wallet its owner caps with a spend limit, an approved-merchant list, and a max transaction size. Handle reservations are open now; full spending access lands in the coming months.
Elsewhere: the EU now makes you say it's a bot
EU AI Act Article 50 is live: any chatbot serving EU users must disclose it's AI in a machine-readable way, and AI-generated media needs marking. Penalties reach €15M or 3% of global turnover — worth a config check if you ship to Europe.