Lyra: A Local-First MCP Toolkit for AI-Collaborative Desktop Research

Lyra is an open-source server implementing the Model Context Protocol (MCP) that enables AI assistants to conduct desktop research with structured provenance, providing accurate and auditable evidence. The software exposes research capabilities—web search, content extraction, natural language inference, and evidence graph construction—as structured tools that MCP-compatible AI clients can invoke directly. Every claim links to source fragments, which link to page URLs, creating an auditable chain from assertion to origin.