Witsy is a BYOK desktop AI application that provides a chat interface for interacting with multiple LLM providers via API, or with locally-running Ollama models. It implements the Model Context Protocol (MCP) as a universal client, allowing MCP servers to be connected to virtually any supported LLM. Built with Electron and Vue.js, it targets developers and power users who want a unified interface for AI chat and tool-augmented AI workflows.