unbrowser by Unchained MCP Server - install & status [2026]

01 · Install unbrowser by Unchained

Claude Code

claude mcp add protostatis-unbrowser -- uvx pyunbrowser

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "protostatis-unbrowser": {
      "command": "uvx",
      "args": [
        "pyunbrowser"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

pypi package pyunbrowser - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.protostatis is GitHub-verified and matches the repo owner

03 · What unbrowser by Unchained can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.0.21 · 2026-08-21

Install · Pick your platform and download: · | Platform | Asset | · |---|---| · | macOS Apple Silicon | unbrowser-aarch64-apple-darwin.tar.gz | · | macOS Intel | unbrowser-x86_64-apple-darwin.tar.gz | · | Linux x86_64…

v0.0.20 · 2026-08-21

Install · Pick your platform and download: · | Platform | Asset | · |---|---| · | macOS Apple Silicon | unbrowser-aarch64-apple-darwin.tar.gz | · | macOS Intel | unbrowser-x86_64-apple-darwin.tar.gz | · | Linux x86_64…

v0.0.19 · 2026-08-05

Install · Pick your platform and download: · | Platform | Asset | · |---|---| · | macOS Apple Silicon | unbrowser-aarch64-apple-darwin.tar.gz | · | macOS Intel | unbrowser-x86_64-apple-darwin.tar.gz | · | Linux x86_64…

04 · Who maintains unbrowser by Unchained

unbrowser by Unchained is maintained by protostatis. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/protostatis/unbrowser
website: https://unchainedsky.com/unbrowser?ref=official_mcp_registry&utm_source=official_mcp_registry&utm_medium=mcp_directory&utm_campaign=unbrowser_registry_v0019_launch
category: browser automation - ranked #44 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 7 releases in the last 90 days (latest 2026-08-21)
registry: io.github.protostatis/unbrowser (active, first published 2026-07-28 · 2 versions)
packages: pypi:pyunbrowser · cargo:unbrowser

06 · unbrowser by Unchained FAQ

What is unbrowser by Unchained?

The cheap browser pass for agents. One native binary. No Chrome. Official MCP Registry identity: mcp-name: io.github.protostatis/unbrowser. It runs locally over stdio via the published package.

Is unbrowser by Unchained still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-21 and it shipped 7 releases in the last 90 days. We re-verify nightly.

How do I install unbrowser by Unchained?

Run `uvx pyunbrowser`. You can also paste the ready-made client config above.

Does unbrowser by Unchained run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to unbrowser by Unchained

Alternatives to unbrowser by Unchained

Maintained browser automation servers if unbrowser by Unchained isn't the fit.

Pairs well with

Servers that cover what unbrowser by Unchained doesn't - only shown when the pairing reason fits the companion.

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