The short version
● What happened Cloudflare open-sourced Kitesurf under Apache 2.0.
● What it is A stateless browser engine built for AI agents.
● Where it runs Cloudflare Workers.
● Cost Free to inspect, fork and deploy.
Cloudflare released Kitesurf, its stateless browser engine for AI agents, under the Apache 2.0 licence on 14 November. Developers can now read the source, fork it and deploy it themselves rather than consuming it only as a hosted service.
Kitesurf runs on Cloudflare Workers, and the stateless design is the point: agent browsing workloads spin up, fetch and tear down constantly, and a long-lived browser session is the wrong shape for that. Open-sourcing the engine puts a production browsing layer within reach of anyone building agents who would otherwise be paying per-session for hosted browser infrastructure.
Apache 2.0 matters more than the code here. It permits commercial use and modification with a patent grant, so a team can build a product on top without a licence conversation. Our coding agents guide covers the tools that would consume a layer like this.
FAQ
What is Cloudflare Kitesurf?
A stateless browser engine designed for AI agents, running on Cloudflare Workers.
What licence is it under?
Apache 2.0, which permits commercial use and modification and includes a patent grant.
Why does stateless matter for agents?
Agent browsing is short and bursty. Spinning up, fetching and tearing down suits that pattern better than holding a long-lived browser session open.