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Agent Browser

RAPR CLI connectorBrowser & Desktop Automation

Fast Rust CLI for AI-controlled Chrome automation via ref-based snapshots, semantic locators, network interception, and cloud browser providers.

By Vercel Labs / RAPR AIv1.0.0Package license: MITFree & Open Source

Agent Browser package details

browser-automationai-agentchromecdpweb-testingrust

RAPR CLI connector scope

This is RAPR-authored connector guidance for a command-line tool the user installs locally. The upstream CLI remains governed by its own license and terms. This package contains RAPR-authored CLI usage guidance, install commands, and agent instructions. It does not bundle the upstream CLI binary. Users can also go directly to the public upstream source linked on this page.

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Agent Browser

A fast Rust CLI that gives AI agents deterministic, stable control over Chrome/Chromium via the Chrome DevTools Protocol.

What you can do

  • Ref-based snapshots: Get stable element refs from the accessibility tree and act on them without fragile CSS selectors.
  • Semantic locators: Find elements by role, text, label, placeholder, alt text, or test ID.
  • Network interception: Mock responses, block requests, and record HAR files.
  • Auth persistence: Chrome profiles, session state, and encrypted cookie management.
  • React introspection: Component tree inspection, render profiling, Suspense boundaries.
  • Web Vitals: LCP, CLS, TTFB, INP performance monitoring.
  • Cloud providers: Connect to Browserless, Browserbase, Browser Use, Kernel, and AgentCore.
  • Natural language control: Use agent-browser chat for AI-driven browsing.
  • Streaming viewport: Live WebSocket preview for pair-browsing sessions.

Prerequisites

npm install -g agent-browser
agent-browser install

Linux users: agent-browser install --with-deps

Example Requests

  • "Use agent-browser to snapshot this page and click the login button."
  • "Intercept and mock the API response at /api/users."
  • "Run a Web Vitals check on my site and report LCP and CLS."
  • "Set up a persistent Chrome profile for this session so I don't have to re-login."

Always take a snapshot before acting on elements; refs are stable only within a single snapshot cycle.

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