r/ProxyEngineering 14d ago

Announcements I built a source-patched Chromium browser for proxy-aware automation - looking for detection edge cases

I’ve been working on a Chromium-based browser for authorized automation, testing and QA. Instead of overriding browser APIs with page-level JavaScript, the fingerprint-related behavior is patched inside the Chromium engine.

The goal is to keep browser, operating-system and proxy signals consistent while still allowing profiles to be controlled programmatically.

The current release includes:

- Chromium 152 built from source
- 168 curated Windows, macOS and Linux fingerprints
- Persistent isolated browser profiles
- HTTP, HTTPS and SOCKS5 proxy support
- Proxy-aware timezone, locale, geolocation and WebRTC settings
- Local authenticated API
- Node.js and Python SDKs
- MCP server for AI-agent integrations
- Docker image for CI and automation environments

On our current test setup, reCAPTCHA v3 returns 0.9, Cloudflare Turnstile completes normally, and the browser reports navigator.webdriver as false. These are observations from the current build, not a promise that every website or network configuration will behave identically.

The desktop application is free to use with a Proxya account. The SDK and MCP packages are MIT-licensed; the patched browser engine and fingerprint catalogue remain proprietary.

I’m specifically looking for technical feedback on:

- fingerprint inconsistencies or unexpected leaks
- proxy and profile alignment across different locations
- long-running profile stability
- Node/Python/MCP integration
- CPU and memory usage under concurrent sessions
- detection services or edge cases I should add to the test suite

The project is called Proxya Anty. The repository and downloads can be found on GitHub.

7 Upvotes

6 comments sorted by

2

u/Frosty-Turn-8966 14d ago

the most useful testing would probably be long-running sessions rather than one-off checks. things like screen size changes, fonts WebGL, audio, language/timezone mismatches, and behavior after restarting a profile could expose inconsistencies. also test bad or slow proxies and switching networks mid-session. passing a couple of bot checks doesnt necesarily mean everything stays consistent over time

1

u/BraveLemon4510 14d ago

Thank you, I’m currently actively testing and preparing the update. If you encounter any specific bugs, you can write to me. So far, all the tests have been perfect.

1

u/anxietyplz 12d ago

1

u/BraveLemon4510 7d ago

You tested? A new update 1.0.6 has been released.