comet-mcp
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Give Claude Code a browser that thinks.
An MCP server that connects Claude Code to Perplexity Comet - enabling agentic web browsing, deep research, and real-time task monitoring.
!Demo
Why?
Existing web tools for Claude Code fall into two categories, both with limitations:
1. Search APIs (Tavily, Perplexity API, WebFetch)
Return static text. No interaction, no login, no dynamic content. Great for quick lookups, but can't navigate complex sites or fill forms.
2. Browser Automation (browser-use, Puppeteer MCP, Playwright MCP)
Can interact with pages, but use a one-agent-do-all approach: the same reasoning model that's writing your code is also deciding where to click, what to type, and how to navigate. This overwhelms the context window and fragments focus.
3. Comet MCP: Multi-Agent Delegation
Comet MCP takes a different approach. Instead of Claude controlling a browser directly, it delegates to Perplexity Comet - an AI purpose-built for web research and browsing.
- Claude stays focused on your coding task
- Comet handles the browsing: navigation, login walls, dynamic content, deep research
- Result: Claude's coding intelligence + Perplexity's web intelligence, working together
Quick Start
1. Configure Claude Code
Add to ~/.claude.json or .mcp.json:
{
"mcpServers": {
"comet-bridge": {
"command": "npx",
"args": ["-y", "comet-mcp"]
}
}
}2. Install Comet Browser
Download and install Perplexity Comet.
That's it! The MCP server automatically launches Comet with remote debugging when needed.
3. Use in Claude Code
You: "Use Comet to research the top AI frameworks in 2025"
Claude: [delegates to Comet, monitors progress, returns results]
You: "Log into my GitHub and check my notifications"
Claude: [Comet handles the login flow and navigation]Tools
| Tool | Description | |------|-------------| | comet_connect | Connect to Comet (auto-starts if needed) | | comet_ask | Send a task and wait for response | | comet_poll | Check progress on long-running tasks | | comet_stop | Stop current task | | comet_screenshot | Capture current page | | comet_mode | Switch modes: search, research, labs, learn |
How It Works
Claude Code → MCP Server → CDP → Comet Browser → Perplexity AI
(reasoning) (bridge) (web browsing)Claude sends high-level goals ("research X", "log into Y"). Comet figures out the clicks, scrolls, and searches. Results flow back to Claude.
Requirements
- Node.js 18+
- Perplexity Comet Browser
- Claude Code (or any MCP client)
- Supported platforms: macOS, Windows, WSL2
Windows & WSL Support
Native Windows
Works out of the box. Comet MCP auto-detects Windows and launches Comet from its default install location.
WSL2 (Windows Subsystem for Linux)
WSL2 requires mirrored networking to connect to Comet running on Windows:
- Enable mirrored networking (one-time setup):
# Create/edit %USERPROFILE%\.wslconfig (Windows side)
[wsl2]
networkingMode=mirrored- Restart WSL:
wsl --shutdown
# Then reopen your WSL terminal- That's it! Comet MCP auto-detects WSL and uses PowerShell to communicate with Windows.
If mirrored networking isn't available, you'll see a helpful error message with setup instructions.
Custom Comet Path
If Comet is installed in a non-standard location: ``json { "mcpServers": { "comet-bridge": { "command": "npx", "args": ["-y", "comet-mcp"], "env": { "COMET_PATH": "/path/to/your/Comet" } } } } ``
Troubleshooting
"Cannot connect to Comet"
- macOS: Ensure Comet is installed at
/Applications/Comet.app - Windows: Comet should be in
%LOCALAPPDATA%\Perplexity\Comet\Application\ - Check if port 9222 is available
"WSL cannot connect to Windows localhost"
- Enable mirrored networking (see WSL section above)
- Or run Claude Code from Windows PowerShell instead of WSL
"Tools not showing in Claude"
- Restart Claude Code after config changes
License
MIT
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