Operative.sh WebEvalAgent MCP Server

Let the code fix itself, you’ve got better things to do.

Supercharge Your Debugging

operative.sh’s MCP Server unleashes LLM-powered agents to autonomously execute and debug web apps directly in your code editor.

Features

This weapon in your development arsenal transforms your Code IDE experience (Cline, Cursor):

• Navigate your webapp using BrowserUse (now 2x FASTER when using our backend!)
• Capture network traffic - all requests/responses at your fingertips
• Collect console errors - nothing escapes detection
• Autonomous debugging - the Cursor agent calls the web QA agent mcp server to test if the code it wrote works as epected end-to-end.

Quick Start (macOS/Linux)

1. Run the installer after getting an api key (free)

# Feel welcome to inspect the installer script like so:
# curl -LSf https://operative.sh/install.sh | less -N
# Download, install, and remove the installer script
curl -LSf https://operative.sh/install.sh -o install.sh && bash install.sh && rm install.sh

2. Unleash the agent in Cursor Agent Mode with web_app_ux_evaluator (verify tool refreshed or restart Cursor)
3. If any issues, see Issues section below

Manual JSON Installation

1. Run uvx --from git+https://github.com/Operative-Sh/web-eval-agent.git webEvalAgent with no api key first since Cursor doesn’t wait for our deps to download!
2. npm install -g playwright
3. On startup, kill and then update your relevent MCP JSON:

"web-eval-agent": {
  "command": "uvx",
  "args": [
    "--from",
    "git+https://github.com/Operative-Sh/web-eval-agent.git",
    "webEvalAgent"
  ],
  "env": {
    "OPERATIVE_API_KEY": "YOUR_API_KEY"
  }
}

Manual Windows Installation (Cline)

# 1. Get your API key at operative.sh
# 2. Install uv (curl -LsSf https://astral.sh/uv/install.sh | sh)
# 3. uvx --from git+https://github.com/Operative-Sh/web-eval-agent.git playwright install
# 4. Unleash the agent in Cline with web_app_ux_evaluator (may have to restart Cline) 

Issues

• Initial tool calls Playwright issues, fix pushed 4/14, npm install -g playwright playwright issues on tool call.
• Any issues feel free to open an Issue on this repo!

Built with <3 @ operative.sh