This project ports LangChain to Swift, providing chains, agents, and tool integrations for building LLM applications. It supports numerous LLM providers including OpenAI, Google AI, ChatGLM, Ollama, and local GGUF models. The library enables integration with external services like Notion, Supabase, Serper, and Baidu for building sophisticated AI-driven workflows on iOS, macOS, watchOS, and visionOS.