Beijing-based Moonshot AI has released Kimi WebBridge, a browser extension that lets AI agents interact with websites the way a person would — searching, clicking, typing, scrolling, and extracting data — all while running locally on your device. That last part is the one that actually matters.
Most browser automation tools for AI agents push your session data through cloud servers. That means your authenticated pages, form entries, and sensitive account content leave your machine. Moonshot AI released Kimi WebBridge as a Chrome extension and local background service that lets AI agents operate inside Chrome and Edge through the Chrome DevTools Protocol, and the company says browsing activity, form entries, and screenshots remain on the user's device and do not pass through Moonshot servers.
It's available now on the Chrome Web Store and the official Kimi website.
How Kimi WebBridge Works
The architecture here is worth understanding before you dismiss this as just another browser plugin. Kimi WebBridge pairs a local service with a browser extension. The agent sends commands to the local service, which uses Chrome DevTools Protocol to navigate, click, screenshot, and read pages in your existing Chrome or Edge browser, then sends the results back. Everything runs locally, so your login sessions and page content never leave your device.
Chrome DevTools Protocol (CDP) is the same low-level interface developers use for browser debugging and testing. Repurposing it for agent control is technically sound, and it means the agent operates inside your existing browser session with all your cookies and logins already present, not inside an isolated sandbox.
The agent can open pages, click buttons, fill out forms, take screenshots to understand what it's looking at, read text from pages, and pass results back to whatever AI tool you're using. It's not a separate browser — it works in the Chrome or Edge window you already have open, with all your cookies and logins intact.
Key Technical Highlights
WebBridge supports multiple AI ecosystems including Claude Code, Cursor, Codex, Hermes, and Kimi Code CLI, positioning the platform as an agent-agnostic browser automation layer rather than a closed ecosystem.
A few things stand out technically:
- Local-first by design. The platform uses a local-first architecture built on Chrome DevTools Protocol, allowing browser sessions, authenticated pages, and sensitive enterprise data to remain on the user's machine instead of being routed through cloud infrastructure.
- Moonshot says K2.6 supports up to 300 parallel sub-agents executing across 4,000 coordinated steps simultaneously — the architecture WebBridge taps into when handling complex, multi-step browser tasks.
