NoPII by Enigma-Vault

Client-side retrieval firewall for RAG systems — blocks prompt injection and secret leaks, re-ranks stale or untrusted content, and keeps all data inside your environment. Maintained by taladari on GitHub, where it has earned 22 stars from the community.

Enterprise-ready Document Analysis with Large Language Models. Maintained by docprompt on GitHub, where it has earned 38 stars from the community.

Open-source protocol suite standardizing LLM, Vector, Graph, and Embedding infrastructure across LangChain, LlamaIndex, AutoGen, CrewAI, Semantic Kernel, and MCP. 3,330+ conformance tests. One protocol. Any framework. Any provider. Maintained by Corpus-OS on GitHub, where it has earned 213 stars from the community.