Chainlit

Chainlit is the open-source Python framework for rapidly building and shipping production-ready Conversational AI applications.

Chainlit is your go-to, open-source Python package for developing and deploying Large Language Model (LLM) applications fast. It provides a native web UI, ensuring a polished user experience with minimal effort: you code the logic, Chainlit handles the interface. Key features include built-in observability, specifically the 'Chain of Thought' visualization, which is crucial for debugging multi-step agent reasoning. It offers robust authentication (OAuth with Google, GitHub, Azure) and first-class integrations with popular AI libraries like LangChain, LlamaIndex, and OpenAI. Developers can deploy their application flexibly: as a standalone web app, an embedded copilot, or a backend for platforms like Slack or Discord.

https://chainlit.io