Summary

The experiment the browser absorbed.

It still does what it claims — CDP access to Lightpanda over stdio or SSE — but the same team now ships an MCP server inside the browser, and that is the path they send new users down.

What it is

A Go MCP server that talks to Lightpanda Browser over the CDP protocol and exposes browser tools over stdio or SSE. The author describes it as a first experiment and points elsewhere: the browser now embeds an MCP server natively.

What you get

Browser interaction over CDP, reachable as stdio with `gomcp stdio` or as SSE with `gomcp sse`, listening on `127.0.0.1:8081`
A browser it manages for you — `gomcp download` fetches the binary into your user config directory on first run, `gomcp cleanup` removes it again
`--cdp` to attach to a browser already running elsewhere, for example `gomcp -cdp ws://127.0.0.1:9222 stdio`
A documented Claude Desktop configuration that is just the binary path and a `stdio` argument

Requirements

Lightpanda Browser installed, and Go to build the binary with `go build`. Before you wire it in, read the author's note at the top of the README: the browser now ships its own MCP server, and that is where the work has moved.