cdpwave 2.0.0

Chrome DevTools Protocol for Python — direct CDP over WebSocket, no Selenium, no Playwright

cdpwave

Chrome DevTools Protocol for Python — direct, typed, async.

cdpwave talks to Chrome over a raw WebSocket. No Node.js, no ChromeDriver, no browser downloads. Just pure Python with full type hints and async-first design.

Why cdpwave?

• Full CDP coverage — all 48 CDP domains implemented with 386 typed methods
• Direct WebSocket — single connection to Chrome's DevTools Protocol, no intermediate layers
• Fully typed — mypy --strict across the entire codebase, IDE autocomplete everywhere
• Async-first — built on asyncio, no threading, no blocking calls
• Browser detection — finds Chrome, Edge, Brave, or Chromium already on your system
• Flatten sessions — one WebSocket for all tabs via Target.attachToTarget + sessionId
• Escape hatch — session.send("Any.CDPMethod", params) for any uncovered command
• HTTP discovery — typed access to /json/version and /json/list endpoints
• MIT licensed — permissive, compatible with any use

Install

pip install cdpwave

Quick start

import asyncio
from cdpwave import CDPClient

async def main() -> None:
    async with await CDPClient.launch(headless=True) as client:
        session = await client.new_page("https://example.com")
        result = await session.runtime.evaluate("document.title", return_by_value=True)
        print(result["result"]["value"])  # "Example Domain"
        await session.close()

asyncio.run(main())

Documentation

Full documentation at mathiaspaulenko.github.io/cdpwave.

• Quickstart — 10-minute tutorial
• Guide — in-depth feature coverage
• Cookbook — common recipes
• API Reference — auto-generated docs
• Migration — from pyppeteer or pychrome

License

MIT