Show HN: Nanobot – Turn MCP servers into full AI agents (www.nanobot.ai)

Nanobot is an open-source host that wraps existing MCP (Model Context Protocol) servers into full AI agents, turning plain tool servers into interactive, autonomous assistants with conversational memory, system prompts, and reasoning capabilities. It exposes agents as MCP servers so any MCP client can chat with them, and it implements the MCP-UI spec to render interactive React components inside chat—enabling playable games, shopping carts, dashboards and other rich experiences directly in chat clients. Nanobot ships as an executable with a CLI (installable via Homebrew), uses a simple YAML config to define agents and servers, requires Postgres for persistence, and runs a web UI at localhost:8080. For the AI/ML community this matters because it layers agent orchestration and rich UI on top of an emerging interoperability standard (MCP), letting teams reuse existing tool servers without rewriting them. Technically, Nanobot leverages MCP features like tools, prompts, sampling and elicitation while adding agent-specific behaviors (memory, autonomous action, system prompt management) and first-class MCP-UI rendering. It’s designed for production use and ecosystem growth—thousands of MCP servers are appearing monthly—and is extensible and community-driven, making it easier to prototype and deploy interactive, tool-enabled agents across apps and websites.