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This release is a pre-release and may not be stable for production use.

nokk-mcp

An MCP server that gives an AI agent a headless browser: nokk, a Rust engine with Chrome 151's TLS, HTTP/2 and JavaScript fingerprint that passes Cloudflare's challenges without Chromium.

uvx nokk-mcp

Client configuration (Claude Desktop, Claude Code, Cursor and others):

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

Tools: open, read_text, read_html, click, fill, evaluate, links, solve_challenge, challenge_state, reset. open solves a Cloudflare challenge on the way and says what it met.

Options (flags or environment variables):

Flag Variable What it does
--proxy URL NOKK_PROXY upstream proxy, e.g. socks5://host:1080
--rotate-fingerprint NOKK_ROTATE_FINGERPRINT=1 each session gets its own coherent fingerprint
--geoip-timezone NOKK_GEOIP_TIMEZONE=1 timezone and locale follow the proxy's exit IP
--session-store DIR NOKK_SESSION_STORE keep named sessions' cookies on disk
--no-auto-solve NOKK_NO_AUTO_SOLVE=1 do not solve challenges during navigation
--workers N NOKK_WORKERS isolate worker threads

The same server runs as python -m nokk.mcp after pip install "nokk[mcp]". Documentation, the CDP server and the Python and Node launchers: https://github.com/koloss777/nokk

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