Kimi WebBridge Browser Extension Runs AI Agents Locally, No Cloud Data Exposure
Moonshot AI has released Kimi WebBridge, a browser extension that enables AI agents to interact with websites like a human—clicking, typing, scrolling, and extracting data—while processing everything locally on the user's device. Unlike most cloud-based browser automation tools, WebBridge uses Chrome DevTools Protocol to keep login sessions and page content private, never routing data through Moonshot's servers. This architecture addresses privacy concerns for tasks involving sensitive data like banking, email, or internal company tools. The extension is powered by Kimi K2.6, Moonshot's latest AI model, which ranks first on the SWE-Bench Pro benchmark with a 58.6% score, surpassing GPT-5.4 and Claude Opus 4.6. Kimi WebBridge is agent-agnostic, officially supporting Kimi Code CLI, Claude Code, Cursor, Codex, and Hermes. The release follows a controversy where Cursor was found to have used Kimi 2.5 as the base for its proprietary Composer 2 model, which Moonshot acknowledged gracefully. The browser automation space is crowded with offerings from Anthropic, OpenAI, Google, and Perplexity, but WebBridge differentiates itself through local-first architecture. Competitors' cloud-based agents route browsing activity through third-party servers, whereas WebBridge keeps everything on-device. Installation requires the Kimi Desktop App and browser extension, with a step-by-step process for setup.
Key facts
- Kimi WebBridge runs AI agents locally using Chrome DevTools Protocol, keeping data on-device.
- Powered by Kimi K2.6 model ranking first on SWE-Bench Pro at 58.6%.
- Supports multiple agents: Kimi Code CLI, Claude Code, Cursor, Codex, Hermes.
- Follows Cursor controversy where Kimi 2.5 was secretly used as base model.
- Competes with cloud-based tools from Anthropic, OpenAI, Google, Perplexity.