Most AI browser automation tools pipe your sessions through their cloud. Kimi WebBridge doesn't. That's the entire point.
What dropped
On May 15, 2026, Moonshot AI shipped Kimi WebBridge — a Chrome/Edge extension paired with a local background service that lets AI agents operate your browser the way you would. Click, scroll, type, fill forms, extract data, take screenshots. All of it.
The key architectural decision: everything runs through Chrome DevTools Protocol on your machine. Your cookies, your logged-in sessions, your bank dashboard, your internal tools — the agent can touch all of it and Moonshot never sees a byte of it. It's not a sandboxed headless browser. It's your actual Chrome window, with all your existing logins intact.
The model behind it
WebBridge runs on the Kimi K2 family. If you haven't been tracking Moonshot AI, here's a quick picture:
| Model size | 1 trillion parameters (MoE) |
| SWE-Bench Pro (K2.6) | 58.6% — #1 overall |
| Parallel sub-agents | Up to 300, across 4,000 steps |
K2.6 (April 2026) sits at 58.6% on SWE-Bench Pro — ahead of GPT-5.4 at 57.7% and Claude Opus 4.6 at 53.4%. Open-source. Mixture-of-experts.
And if the name Kimi only just landed on your radar, the Cursor controversy is why — Cursor's Composer 2 launched in March marketing "frontier-level proprietary intelligence," and a dev later identified it as K2.5 under the hood. Elon Musk confirmed it in a post. Awkward.
Agent-agnostic by design
This is the part that actually matters for builders: WebBridge isn't locked to Kimi's own model. It officially supports Claude Code, Cursor, Codex, Hermes, Kimi Code CLI, and OpenClaw as driving agents. You install it, paste a connection command into your agent, and it links to the local WebBridge service automatically. The extension becomes a universal browser-control layer — model-agnostic infrastructure for agentic workflows.
Get started
Step 1 — core install
1. Download the Kimi Desktop App from kimi.com/features/webbridge.
2. Install the extension from the Chrome Web Store or Edge Add-ons. Pin it to your toolbar so you can see the connection status at a glance.
Windows users, run this in PowerShell:
irm https://kimi-web-img.moonshot.cn/webbridge/install.ps1 | iex
3. Open the Desktop App → find Kimi Claw in the left sidebar → add a new Claw → select "On my computer." Local service is now running.
or
Directly install the extension from the Chrome Web Store or Edge Add-ons.
Windows users, run this in PowerShell:
irm https://kimi-web-img.moonshot.cn/webbridge/install.ps1 | iex
MacOS users, run this in Terminal:
curl -fsSL https://kimi-web-img.moonshot.cn/webbridge/install.sh | bash
Step 2 — connect your agent
During install, Kimi automatically drops skill files into Claude Code, Codex, Hermes, and other supported agents. After that it's a one-liner per agent.
Claude Code / Codex / Hermes
Skill file is pre-installed. Just invoke the slash command and WebBridge connects automatically:
/kimi-webbridge
Cursor / other agents
Copy the connection command from the official setup page and paste it into your agent:
curl -fsSL https://kimi-web-img.moonshot.cn/webbridge/connect.sh | sh
Verify the connection
kimi-webbridge status
Should say Connected. If it says Disconnected, make sure the Desktop App is running first, then re-run the connection command.
Once connected, prompt your agent naturally — WebBridge handles the browser side:
/kimi-webbridge Go to LinkedIn, find 2 senior AI engineers at top AI companies,
return a CSV with their name, profile URL, and current role.
The space is getting crowded — Claude's computer use, OpenAI Operator, Perplexity Comet. The differentiator Kimi is betting on is simple: your data doesn't leave your machine. For enterprise use cases, internal dashboards, anything auth-gated — that's not a small thing.
Worth watching closely. The open-source MoE model that secretly powered Cursor's flagship feature is now building infrastructure. That's a statement of intent.
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