Byparr

An alternative to FlareSolverr as a drop-in replacement, build with seleniumbase and FastAPI.

Important

Due to recent challenge changes, this software does not guarantee that the Cloudflare challenge will be bypassed. Cloudflare likely requires valid network traffic originating from the user’s public IP address to mark a connection as legitimate. While this tool may bypass the initial browser check, it does not ensure that requests will consistently pass Cloudflare's validation. More testing and data are required to understand how Cloudflare identifies connections and requests as valid. Invalid requests will result in Byparr's looping and eventually time-outing.

Important

Support for NAS devices (like Synology) is minimal. Please report issues, but do not expect it to be fixed quickly. The only ARM device I have is a free Ampere Oracle VM, so I can only test ARM support on that. See #22 and #3

Note

Thanks to FastAPI implementation, now you can also see the API documentation at /docs or / (redirect to /docs) endpoints.

Troubleshooting (Docker required)

1. Clone repo to the host that has the container has issues on.
2. Using vscode and SSH extension, connect to the host and open repo in it.
3. Download Dev Containers extension and reopen repo in container (with CTRL + SHIFT + P -> Reopen in devcontainer)
4. Forward port 6080 from devcontainer (port of noVNC server) to the host.
5. Open http://localhost:6080 and connect to the virtual desktop.
6. Check if chromium works by running in VNC's terminal command chromium --no-sandbox.
7. If chromium works, run (or debug) tests from VS Code.
   1. If code works, congrats! (not really) You are on your own.
   2. If it does not, try on another host or network and create an issue if problem persists.

Options

Env	Default	Description
USE_XVFB	false	Use virtual desktop with Xvfb. (Linux only) (Can cause performance hog #14)
USE_HEADLESS	true/false on docker	Use headless chromium.

Tags

• v*.*.*/latest - Releases considered stable
• main - Latest release from main branch (untested)

Usage

Docker Compose

See compose.yaml

Docker

docker run -p 8191:8191 ghcr.io/thephaseless/byparr:latest

Local

uv sync && ./cmd.sh

Need help with / TODO

• Slimming container (only ~650 MB now!)
• Add more anti-bot challenges
• Add doc strings
• Implement versioning
• Proxy support
• Add more architectures support