grob

LLM proxy with built-in DLP and regulatory compliance. Redacts secrets before they reach the API. EU AI Act, GDPR, HDS/PCI DSS ready. Multi-provider failover, live TUI, virtual keys, fan-out. 6 MB, zero deps. Rust. Maintained by azerozero on GitHub, where it has earned 20 stars from the community.

It's actively developed around anthropic, openai, rust, and is a solid reference for anyone building with these tools.