Kimi WebBridge - A browser extension from Dark Side of the Moon - AiBoss

What is Kimi WebBridge?

Kimi WebBridge is a browser extension developed by Dark Side of the Moon, designed for local AI agents such as Kimi Code, Claude Code, Cursor, and Codex. Through a local bridging service and the Chrome DevTools Protocol, Kimi WebBridge allows AI to carry the user's real login state and cookies, performing actions like clicking, swiping, typing, filling out forms, extracting information, and integrating cross-site content within the browser, just like a real person. All tasks are completed locally, ensuring that web page data never leaves the device, thus protecting privacy and security while achieving efficient and automated web page operations.

Main functions of Kimi WebBridge

Browser automationIt supports AI Agents in performing operations such as webpage navigation, button clicking, form filling, and page scrolling.
Identity status inheritanceThe AI carries the user's real login status, cookies, and account permissions to operate the website without any additional configuration.
Information extraction and integrationIt can crawl and integrate content across sites, and supports writing data to online documents or local directories.
Visualized task tracking: Marks the currently active browser tab at runtime, without occupying the mouse and keyboard, allowing users to use the computer in parallel.
Advanced CLI ToolsSupports packaging fixed processes into a dedicated CLI tool that does not consume large model tokens for repetitive tasks.

The technical principles of Kimi WebBridge

Dual-component collaborative architectureThe system consists of two parts: a local bridging service and a browser extension. The AI Agent sends natural language commands to the local bridging service, which communicates with the extension in the Chrome or Edge browser through a standard interface. The extension then drives the browser to complete the specific operation based on the underlying protocol and sends the execution result back to the Agent, forming a complete command loop.
Based on Chrome DevTools ProtocolThe browser extension uses the Chrome DevTools Protocol (CDP), a debugging protocol provided by Chrome. Through this protocol, the extension can perform operations such as navigation, element clicking, form input, page screenshots, and DOM reading and modification within the user's current real browser instance, without needing to launch a standalone or virtual browser environment.
Local identity inheritance mechanismKimi WebBridge directly reuses the user's existing browser session, inheriting the actual login state, cookies, and locally stored data. When AI operates on the target website, it is equivalent to the user operating it, so there is no need to configure accounts, handle CAPTCHAs, or bypass login barriers. It naturally supports various backend systems that require identity authentication.
Device-side privacy protectionAll command parsing, page interaction, and data extraction are completed on the user's local device. The bridging service is only responsible for local inter-process communication; web page content, cookies, and operation results are not uploaded to the cloud server, ensuring that sensitive business data does not leave the local device.

How to use Kimi WebBridge

Install browser pluginsSearch for and install the Kimi WebBridge extension in the Chrome or Edge browser app store.
Install local daemonSend a specified curl command to the local AI Agent to install the local daemon and skill for Kimi WebBridge.
Restart Agent and load skillsRestart local AI agents such as Kimi Code to enable them to recognize and load newly installed WebBridge skills.
Verify installation resultsEnter the test command "Use kimi-webbridge to open kimi.com for me". If the tab opens successfully and the message "agent:kimi" appears, the installation is successful.
Kimi Claw Desktop usersIf you have deployed Kimi Claw Desktop locally via Kimi Desktop, you do not need to install a daemon; you can start using it by sending commands directly.

Kimi WebBridge's core advantages

Inheritance of native identityIt directly reuses the user's existing login state, eliminating the need to simulate accounts or process CAPTCHAs, thus lowering the barrier to entry for complex websites.
Local privacy and securityAll operations are performed in the local browser, and sensitive data and web page content are not uploaded to the cloud.
Multi-Agent CompatibilityIt uniformly supports mainstream local agents such as Kimi Code, Claude Code, Cursor, Codex, Hermes, and OpenClaw.
Non-intrusive operationThe background operation tab does not occupy the mouse and keyboard, allowing for human-computer collaboration.
Low token consumptionFixed processes can be compiled into dedicated CLI tools, eliminating the need to repeatedly call large models when executing them repeatedly.

Kimi WebBridge project address

Project official websitehttps://www.kimi.com/zh-cn/features/webbridge

Comparison of similar products to Kimi WebBridge

Dimension	Kimi WebBridge	Browserbase	Agent-Browser (Vercel)
Operating mode	Local browser extensions + bridging service	Cloud-hosted browser	Cloud/local browser automation
Inheritance of Status	Directly reuse user cookies and login status	A separate environment or account needs to be configured.	A separate environment or account needs to be configured.
Data privacy	Executed entirely locally, with no data leaving the device.	Data passes through cloud servers	Depending on the deployment method
Support Agent	Kimi Code, Claude Code, Cursor, etc.	API primarily for developers	API primarily for developers
Usage threshold	Install the plugin with just one command.	API integration development required	Requires certain technical configuration
Human-machine collaboration	Runs in the background and does not require keyboard or mouse input.	Runs in the cloud, with no local interaction.	Runs in the cloud, with no local interaction.

Application scenarios of Kimi WebBridge

Automated information processingAutomatically collects promotional materials from multiple note-taking apps in app stores, allowing AI to analyze design style differences and write them into an online document.
Automation of complex operationsTake over the quantitative research simulation platform with one click, automatically capture financial data, execute multi-strategy iterative backtesting, and write quantitative reports.
Repetitive web page tasksAutomating repetitive and tedious web-based operations or scheduled tasks, such as batch form filling, clicking, data entry, and status updates.
Cross-site content integrationIt can extract and integrate information across multiple websites while logged in, enabling content migration, data aggregation, and synchronization of information from multiple sources.