Vibetest Use

Vibetest Use is an MCP server that enables multiple Browser-Use agents to go through your site looking for UI bugs, broken links, accessibility problems, and other technical hiccups.

Features

• 🤖 Multi-Agent Testing: Deploys several browser agents to test your site.
• 🌐 Live & Localhost Support: Works with public URLs and local development servers (e.g., localhost:3000).
• 🐞 UI Bug Detection: Helps spot visual inconsistencies and functional errors in the user interface.
• 🔗 Broken Link Checker: Scans for and reports non-functional links.
• ♿ Accessibility Insights: Identifies common accessibility issues.
• ⚙️ Configurable Agent Count: You can specify the number of agents (default is 3) – more agents can mean more thorough testing.
• 👻 Headless Mode: Option to run tests without a visible browser window, which is great for CI/CD pipelines or server-based testing.

How To Use It

1. Install dependencies:

# Create and activate a virtual environment
uv venv
source .venv/bin/activate
# Install Vibetest and its dependencies
uv pip install -e .

2. Connect it to your MCP clients

Claude Code

# Add the Vibetest MCP server
claude mcp add vibetest /full/path/to/vibetest-use/.venv/bin/vibetest-mcp -e GOOGLE_API_KEY="YOUR_API_KEY_HERE"

Remember to replace /full/path/to/vibetest-use/ with the actual path to where you installed Vibetest Use, and YOUR_API_KEY_HERE with your actual Google API key.

After that, you can check if it’s connected within Claude:

> claude
> /mcp
  ⎿  MCP Server Status
     • vibetest: connected

Cursor

1. Open Cursor Settings.
2. Click on “MCP” in the sidebar.
3. Click “Add Server” (or the “+” button).
4. You’ll need to manually edit the configuration JSON. It should look something like this:

{
  "mcpServers": {
    "vibetest": {
      "command": "/full/path/to/vibetest-use/.venv/bin/vibetest-mcp",
      "env": {
        "GOOGLE_API_KEY": "YOUR_API_KEY_HERE"
      }
    }
  }
}

3. Once it’s connected, you can tell it what to do:

> Vibetest my website with 5 agents: browser-use.com
> Run vibetest on localhost:3000
> Run a headless vibetest on localhost:8080 with 10 agents

4. Available parameters

• URL: The website you want to test. This can be anything like https://example.com, localhost:3000, or http://dev.mysite.com.
• Number of agents: You can specify how many agents to use, like 5 agents or 2 agents. The default is 3. More agents generally means it can cover more ground or do it faster.
• Headless mode: By default, it runs non-headless (you see the browser windows). You can switch to headless if you prefer it to run in the background.