# Bruster: A Faster-Starting, Lighter Browser for AI Agents

> Source: <https://dev.to/ilyas_4103f68b4a150ad2abf/bruster-a-faster-starting-lighter-browser-for-ai-agents-568d>
> Published: 2026-11-03 20:07:48+00:00

I've been building **[Bruster](https://github.com/aliilyas/bruster)** - an open-source browser automation tool written in Rust, designed for AI agents and scripts.

The goal is simple: fast startup, lower memory usage, and a straightforward way to control a real browser.

Bruster uses your platform’s native webview:

The controller runs without Node.js and exposes two interfaces: **MCP** for compatible AI clients and **JSON lines over stdin/stdout** for scripts.

You can connect it to Claude Code, Cursor, or another MCP-compatible client.

*The demo is a scripted MCP session showing navigation, form interaction, and screenshots.*

Here’s one published Linux benchmark comparing Bruster with **agent-browser 0.40.0 using full Chrome**:

| Metric, median | Bruster | agent-browser | 
|---|---|---|
| Launch to first loaded page | 219 ms | 799 ms | 
| Total idle memory, PSS | 256 MiB | 523 MiB | 

That run used Ubuntu 24.04 and ten fresh sessions per configuration against local test pages. Memory includes browser helper processes and Bruster’s Xvfb display; Xvfb startup is excluded from timing.

These are workload-specific results across different browser engines. The [full benchmark report](https://aliilyas.github.io/bruster/benchmarks/runs/852486658ea5336c158a06fac49332706e2e3c39-40658586503-1/) includes additional tools, workloads, and methodology.

Install on macOS or Linux, then register the MCP server:

```
curl -fsSL https://raw.githubusercontent.com/aliilyas/bruster/main/install.sh | sh

claude mcp add bruster -- "$HOME/.local/bin/bruster" --mcp --quiet
```

Linux requires WebKitGTK 4.1, plus `xvfb` and `xauth` when running without a desktop display. [Platform setup and other MCP clients](https://aliilyas.github.io/bruster/mcp/).

Then try:

Use Bruster to open [https://example.com](https://example.com), inspect the page, and take a screenshot.

Current limitations include synthetic input events and no cross-origin iframe access.

Bruster is **MIT licensed**, and feedback is welcome—especially on real-world agent workflows and MCP compatibility.