Konstruct

A knowledge graph substrate that gives Claude structured access to 540K+ concepts connected by 33 typed relation types like "causes," "prevents," "requires," and "contradicts." Instead of dumping unstructured text at the model, you get traversable knowledge organized into 2,700+ domain-specific packs across health, science, programming, and nine other fields. The server exposes graph query operations to walk edges, retrieve concepts, and get advisories based on relationship topology. Reach for this when you want Claude to reason over causal chains or logical dependencies rather than just retrieve facts. Setup is a single URL with bearer token auth in your MCP config.