Langroid

Langroid is a Python framework for building LLM applications using multi-agent programming. Developed by researchers from CMU and UW-Madison. Agents are first-class citizens that collaborate by exchanging messages through a hierarchical task delegation system inspired by the Actor model. Supports function calling via Pydantic, vector store integration with Qdrant, Chroma, and LanceDB for RAG, and works with any LLM (local or remote API-based). Lightweight and extensible with ready-to-use example demos.