AstrBot is an open-source agentic IM chatbot infrastructure with powerful agent orchestration, unifying 18+ messaging platforms, LLMs, plugins, and AI workflows into one system. Build AI companions, automations, or team assistants with multimodal chat, Agents, MCP, Skills, knowledge bases, and personas. 1000+ plugins ready to install. Secure sandbox for safe code & shell execution. WebUI and ChatUI included. A more production-ready OpenClaw alternative.