jdcodec 0.3.0

JD Codec — privacy-first local MCP proxy for browser-agent tasks. Compresses page snapshots ~80%+ via a cloud codec; PII never leaves your machine.

jdcodec — Python Distribution

pip install jdcodec

A privacy-first local proxy for browser-agent task pipelines. The Python distribution is a thin wrapper that delegates to the JD Codec connector — it gives you pip install jdcodec ergonomics with the connector running under the hood via Node.

What it does

• Compresses browser-agent page snapshots so your agent's context window goes much further on long tasks.
• Scans every snapshot on your machine for PII (emails, phone numbers, credit cards, API keys, addresses, and more) and replaces them with category tokens before any bytes leave your network.
• Falls back to a local-only mode if the cloud service is unreachable — your agent never blocks on us.

Requirements

• Python 3.8 or newer
• Node.js 22 or newer on your PATH (install from https://nodejs.org/ or brew install node / apt install nodejs npm)
• An MCP-capable agent client (Claude Code, Cursor, or any client that speaks MCP stdio)
• A JD Codec API key — email [e-mail]

Usage

pip install jdcodec
jdcodec --help          # general help
jdcodec start           # launches the local MCP proxy
jdcodec-audit           # environment audit / waitlist tool

The first invocation will fetch and cache the connector via npx — typically a few seconds, then instant on subsequent runs.

Pinning a specific version

By default the wrapper resolves to the latest published connector. To pin:

JDC_CONNECTOR_VERSION=0.2.0 jdcodec start

Wiring it into your agent

The Python wrapper exposes the same jdcodec command as the npm distribution. Point your MCP client config at jdcodec (not npx @playwright/mcp) and the connector takes over. Specific guides for Claude Code, Cursor, and generic MCP clients are available — email [e-mail] for access.

Configuration

Set your API key either as an environment variable or in a config file:

export JDC_API_KEY='jdck_yourid.yoursecret'

Or:

mkdir -p ~/.jdcodec
cat > ~/.jdcodec/config.json <<EOF
{ "api_key": "jdck_yourid.yoursecret" }
EOF
chmod 600 ~/.jdcodec/config.json

The full env-var reference (JDC_BYPASS, JDC_REGION, JDC_TRACE, etc.) is documented in the npm package's README — npm view jdcodec readme or visit https://www.npmjs.com/package/jdcodec.

Support

Email [e-mail] for alpha access, API keys, bug reports, or feature requests.