unbrowser by Unchained

Official MCP Registry identity:mcp-name: io.github.protostatis/unbrowser

Defaultnavigateis a fast static/SSR pass.Setexec_scripts: trueonly when you need bounded QuickJS execution. Heavy SPAs, pixels, V8 fidelity, extensions, and interactive anti-bot challenges belong in a real Chrome tier.

Useunbrowserwhen HTTP alone is too dumb and a full browser is too expensive. When the page needs Chrome, the output tells the agent to escalate rather than pretending compatibility it does not have.

Docker — Linux amd64/arm64, ~13 MiB pull

docker pull ghcr.io/protostatis/unbrowser:latest # One-shot navigation docker run --rm ghcr.io/protostatis/unbrowser:latest \ navigate https://example.com --json # Default mode: MCP over stdio docker run --rm -i ghcr.io/protostatis/unbrowser:latest

The image is distroless and runs as non-root: no shell, package manager, or persistent state. Pin:vX.Y.Zor an image digest in production.

pipx install pyunbrowser # recommended on macOS / modern Linux # or, inside a Python 3.10+ virtual environment: pip install pyunbrowser

from unbrowser import Client with Client() as ub: ub.navigate("https://news.ycombinator.com") for link in ub.query(".titleline > a")[:3]: print(link["text"], link["attrs"]["href"])

On macOS,/usr/bin/python3is 3.9 and cannot install the wheel; usepipxor a Homebrew Python. The PyPI distribution ispyunbrowser, while the import and executable remainunbrowser.

{ "mcpServers": { "unbrowser": { "command": "unbrowser", "args": ["--mcp"] } } }

{ "mcpServers": { "unbrowser": { "command": "docker", "args": [ "run", "--rm", "-i", "ghcr.io/protostatis/unbrowser:latest" ] } } }

Seeinstallation and interface referencefor Cargo, release archives, source builds, persistent shell sessions, raw JSON-RPC, and all MCP options.

{"id":1,"method":"navigate","params":{"url":"https://example.com","exec_scripts":true}}

A browser automation service for capturing console output, useful for tasks like public sentiment analysis.