agent-browser

agent-browser

Vercel Labs
+
+

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About

A2UI is a declarative UI protocol designed to enable AI agents to generate rich, interactive user interfaces that render natively across web, mobile, and desktop environments without executing arbitrary code. Instead of relying on text-only interactions or unsafe approaches like sending HTML or JavaScript, A2UI allows agents to communicate UI intent through structured JSON messages that describe components, layouts, and data bindings, which client applications then render using their own trusted, pre-approved components. This approach separates UI generation from UI execution, ensuring that interfaces are secure, consistent with the host application’s design system, and adaptable across platforms. It is designed to be LLM-friendly, using a flat, streaming JSON structure that allows agents to incrementally build and update interfaces in real time, enabling progressive rendering and responsive user experiences.

About

agent-browser is a browser automation CLI designed specifically for AI agents, with compact text output that minimizes context usage and a 100% native Rust architecture. Its agent-first approach uses concise output instead of verbose JSON, helping reduce token consumption during browser automation. The snapshot command returns an accessibility tree where every interactive element receives a unique reference, allowing agents to select elements deterministically without repeatedly querying the DOM. More than 50 commands cover navigation, forms, screenshots, network activity, storage, files, tabs, frames, and debugging. Built-in observability features include video recording, streaming, debugging, profiling, and page diffing, while dedicated workflows support modern applications through network control, React and Web Vitals analysis, init scripts, and Next.js and Vercel integrations.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI developers and product teams who want to build agent-driven applications where models generate secure, dynamic user interfaces instead of just text responses

Audience

AI developers and agent builders seeking to automate browser interactions efficiently through deterministic, context-efficient command-line workflows

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

A2UI
United States
a2ui.org

Company Information

Vercel Labs
Founded: 2015
United States
agent-browser.dev/

Alternatives

Alternatives

Claude

Claude

Anthropic
QML

QML

Qt

Categories

Agentic AI Supported

Categories

Agentic AI Supported
Browser Automation Supported

Integrations

Chrome DevTools Not Supported
HTML Supported
JSON Supported
JavaScript Supported
Next.js Not Supported
OpenUI Supported
Rust Not Supported
Vercel Not Supported

Integrations

Chrome DevTools Supported
HTML Not Supported
JSON Not Supported
JavaScript Not Supported
Next.js Supported
OpenUI Not Supported
Rust Supported
Vercel Supported
Claim A2UI and update features and information
Claim A2UI and update features and information
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