Kloakt MCP server

Kloakt

Cloaked headless browser for AI agents. Lightweight, stealthy, built in Rust. Based on Obscura.

<!-- mcp-name: io.github.KultMember6Banger/kloakt -->

Kloakt is a headless browser built for AI agents. It runs JavaScript via V8, extracts clean markdown from any page (including SPAs), and exposes tools via MCP for Claude Code and other AI systems.

Beyond one-shot extraction it can drive persistent, stateful sessions (click, type, navigate — cookies and page/JS state persist across calls), emit an accessibility/structure snapshot as an agent-vision substitute, and capture real screenshots via system Chrome — 12 MCP tools in all.

Why Kloakt?

Install

Prebuilt binary (recommended)

One-line install (Linux & macOS). Downloads the right binary for your OS/arch from the latest GitHub Release and installs it to ~/.local/bin (or /usr/local/bin when run as root):

curl -fsSL https://raw.githubusercontent.com/KultMember6Banger/kloakt/main/install.sh | sh

You can pin a version or override the install dir:

KLOAKT_VERSION=v0.1.2 INSTALL_DIR=/usr/local/bin \
  sh -c "$(curl -fsSL https://raw.githubusercontent.com/KultMember6Banger/kloakt/main/install.sh)"

Windows: download kloakt-x86_64-windows.zip from the Releases page and extract kloakt.exe onto your PATH.

Homebrew (macOS)

brew install KultMember6Banger/kloakt/kloakt
# or, from a local checkout:
brew install --formula ./Formula/kloakt.rb

(Until a dedicated tap exists, brew tap KultMember6Banger/kloakt https://github.com/KultMember6Banger/kloakt then brew install kloakt.)

cargo install

Builds the CLI from crates.io (requires Rust toolchain; first build compiles V8, ~5 min):

cargo install obscura-cli

This installs the kloakt binary. To build with stealth mode, add --features stealth.

Build from source

git clone https://github.com/KultMember6Banger/kloakt.git
cd kloakt
cargo build --release

# With stealth mode (anti-detection + tracker blocking)
cargo build --release --features stealth

Requires Rust 1.75+ (rustup.rs). First build takes ~5 min (V8 compiles from source, cached after).

Quick Start

Extract content (AI agent use)

# Clean markdown from any page
kloakt extract https://example.com --main

# Structured JSON with metadata
kloakt extract https://example.com --main --json

# Cap output for agent context windows
kloakt extract https://en.wikipedia.org/wiki/Rust --main --json --max-chars 3000

# Wait for SPA hydration
kloakt extract https://example.com --delay 2000 --json

Fetch a page

# Get the page title
kloakt fetch https://example.com --eval "document.title"

# Extract all links
kloakt fetch https://example.com --dump links

# Render JavaScript and dump markdown
kloakt fetch https://news.ycombinator.com --dump markdown

# Wait for dynamic content
kloakt fetch https://example.com --wait-until networkidle0

Start the CDP server

kloakt serve --port 9222

# With stealth mode
kloakt serve --port 9222 --stealth

Scrape in parallel

kloakt scrape url1 url2 url3 ... \
  --concurrency 25 \
  --eval "document.querySelector('h1').textContent" \
  --format json

Snapshot page structure (agent vision)

Shortened. The full README is on GitHub.