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Show HN: Comet MCP – Give Claude Code a browser that can click (github.com)

28 points by hanzili ↗ HN
Hey HN,

Claude Code is pretty agentic now. It writes scripts, calls APIs, uses CLIs. But when something requires actually clicking through a website, it stops and asks me to do it.

Problem is, I'm often unfamiliar with these platforms myself. "Go to App Store Connect and generate a P8 key" okay but where? I end up spending 10 minutes navigating menus I've never seen before.

I started delegating these tasks to Perplexity's Comet browser. It handles the clicking, returns what I need. But copy-pasting between Claude and Comet got old fast.

So I built this MCP server to connect them directly. Now when Claude needs to interact with a website that has no API, it can just ask Comet to handle it.

  Examples:
  - Grab my app ID from RevenueCat dashboard
  - Generate a P8 key in App Store Connect
  - Navigate admin panels behind login walls
I tried Playwright MCP but having Claude do the clicking itself overwhelms the context window. Comet's agentic browsing just works better in my experience.

Comet doesn't have an API, so this uses CDP to communicate with it directly.

20 comments

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robertheadley
I was going to ask what makes this better than just using Playwright and this largely answers that question. I will have to try it out and see how it compares.

I haven't really had luck with MCP in general for quite a while though. I have just been using Google Antigravity for most of my vibe coding needs.

nickpeterson
Anyone know of any good articles around having claude code build playwright test suites for a given website and parameters?
mrcwinn
Claude in Chrome is excellent - as is Claude in Excel. I was shocked at how useful the latter is.
EMM_386
"claude --chrome" does this out of the box and works pretty well.
lostmsu
Is it included in "--yolo"?
nubskr
Another day, another MCP server. Wake me up when we stop needing a new protocol for every AI tool to talk to every other AI tool.
DougN7
I didn’t realize AI could interact with browsers like this already (guess I’m naive). Isn’t this setting up for the scenario where the AI is duped into logging into your bank account and transferring your money away? Not sure I have enough trust to allow an AI to touch a browser.
desireco42
I tried it. My Perplexity premium expired, maybe that is it, but it barely did anything.

When I put prompt you suggested, it did open Perplexity in Comet and then I guess didn't get response even though Perplexity did research, so it used regular search mcp to get results...

It is cool idea, this is what I would like to have, something to automate boring stuff. Find all LinkedIn connections that are not active and remove them from my network for example.

I don't think it is your mcp or code, as tech is just not there yet. It is much easier to accomplish this through other automations.

bpavuk
a brittle MCP that connects a brittle (unless using Opus 4.5) CLI to a brittle browser? (see: Scamlexity, an actual vulnerability name)

I trust Claude in Chrome a lot more, and I trust my own hands and eyes most.

prettyblocks
I've used chrome devtools mcp successfully to do all kinds of advanced in browser tasks, agents like claude code can write js and inject it into the context in a live browser and do all kinds of neat tricks. I've used this extensively in gemini-cli.
jMyles
Any notions of how this differs from Vibium?
nurettin
I noticed that /plugins

Doesn't lost plugins anymore. I'm sure I installed playwright using that menu, but now it lists no plugins (and the plugin can't be found locally)

However, claude add mcp and /mcp still works.

giancarlostoro
I was just thinking to myself this morning, I wonder if I can make Claude Code and Comet work together... Now I have my answer!
thedudeabides5
nice, literally had claude tell me it couldnt do browser today.
dbbk
They literally already have Chrome integration… sorry you wasted your time
ramon156
I just used puppeteer for this until it came natively