comet-mcp vs web-eval-agent

A side-by-side comparison of two Browser Automation servers — tools, transport, auth, maintenance, and copy-paste config for each.

	comet-mcp Give Claude Code a browser that thinks — delegate agentic web browsing and deep research to Perplexity Comet. Unverified stdio (local) No auth TypeScript	web-eval-agent Autonomous browser agent that evaluates and debugs your web app end-to-end from your IDE. Unverified stdio (local) API key Python
Category	Browser Automation	Browser Automation
Language	TypeScript	Python
Transport	stdio (local)	stdio (local)
Auth	None	API key
GitHub stars	159	1.2k
Last commit	5 months ago	4 months ago
Verified
Actively maintained
Install	—	`curl -LSf https://operative.sh/install.sh -o install.sh && bash install.sh && rm install.sh`
Repo	Open	Open

Verdict

Pick comet-mcp if you want zero-setup with no API key, and you need the broadest set of tools.

Pick web-eval-agent if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Add comet-mcp

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "comet-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "comet-mcp"
      ]
    }
  }
}

Add web-eval-agent

Install / run

curl -LSf https://operative.sh/install.sh -o install.sh && bash install.sh && rm install.sh

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "web-eval-agent": {
      "command": "uvx",
      "args": [
        "--refresh-package",
        "webEvalAgent",
        "--from",
        "git+https://github.com/Operative-Sh/web-eval-agent.git",
        "webEvalAgent"
      ],
      "env": {
        "OPERATIVE_API_KEY": "<YOUR_KEY>"
      }
    }
  }
}

Requires `uv` (the Python package runner). Install it from https://docs.astral.sh/uv/ if `uvx` is not found.

FAQ

comet-mcp or web-eval-agent — which is better?

Pick comet-mcp if you want zero-setup with no API key, and you need the broadest set of tools. Pick web-eval-agent if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Can I use both comet-mcp and web-eval-agent?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do comet-mcp and web-eval-agent work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View comet-mcp →View web-eval-agent →More comparisons →