This is a grounded answer engine that forces your agent to cite sources instead of hallucinating from training data. Every query drills through a verified reference corpus across multiple domains, and if there's no matching record, you get a dry hole, not a guess. The MCP endpoint exposes lookup operations that return answers pinned to named sources, plus gap tables that show you what the system knows it doesn't know. Queries that miss get logged to a public demand queue that drives what gets built next. Reach for this when you need attributable facts over plausible sounding ones, or when you'd rather hear "no record" than a confident invention.