CometCAUTION
MCP Server connecting to Perplexity Comet browser
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://www.npmjs.com/package/comet-mcp)
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.
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
f88b87222ec2OBSERVED · 2026-10-06Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add comet-mcp -- npx -y [email protected]
{
"mcpServers": {
"comet-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
]
}
}
}Exposed tools (6)
4 read · 2 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
comet_ask | write | Send a prompt to Comet/Perplexity and wait for the complete response (blocking). Ideal for tasks requiring real browser interaction (login walls, dynamic content, filling forms) or deep research with agentic browsing. |
comet_connect | read | Connect to Comet browser (auto-starts if needed) |
comet_mode | read | Switch Perplexity search mode. Modes: |
comet_poll | read | Check agent status and progress. Call repeatedly to monitor agentic tasks. |
comet_screenshot | read | Capture a screenshot of current page |
comet_stop | write | Stop the current agent task if it |
Trust audit
CAUTIONgrade B · trust 89/100 Install with care. The audit found things worth knowing before you trust its output.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | WARN |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- declared (9 observation(s))
- Shell
- declared (3 observation(s))
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (7)
const response = await windowsFetch(`http://127.0.0.1:${port}/json/version`);const response = await windowsFetch(`http://127.0.0.1:${port}/json/version`);const response = await windowsFetch(`http://127.0.0.1:${port}/json/version`);const response = await windowsFetch(`http://127.0.0.1:${port}/json/version`);const response = await windowsFetch(`http://127.0.0.1:${this.state.port}/json/version`);@modelcontextprotocol/sdk, chrome-remote-interface, @types/chrome-remote-interface, @types/node, typescript
demo.gif
Gates applied: no_behavioural_pass.
f88b87222ec2full audit observations/trust-audit/mcp-server/hanzili__comet-1.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-06 | f88b87222ec2 | CAUTION | B | 89 | first audit |
Questions
What is the Comet MCP server?
MCP Server connecting to Perplexity Comet browser
What tools does Comet expose?
6 in total: 4 read-only, 2 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Comet safe to connect to an agent?
With care. The audit graded it B (89/100) and found 7 things worth knowing before you trust this server, listed below with the exact line each was found on.
What credentials does Comet need?
No credential environment variables were found in its source, so it appears to need none.
How does Comet run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as comet-mcp at 2.3.0.
How current is this page?
The grade is for one exact copy of the source (f88b87222ec2), read on 2026-10-06. The repository is watched and re-audited when it changes.