The CompanyGraph MCP server,
connected in one click.

list_types — Every type the model's schemas declare. Use first, to learn which types exist before listing or describing one. No input. Returns `types`, e

describe_schema — One type's schema: its sections as written and its declared relations as data. Use to learn what an entity of the type may hold; for the who

describe_relations — What the schemas declare between types: references with form and cardinality, ownership, enums, joins, list kinds. Use for a diagram or audi

list_rules — The vocabulary's conventions the model is held to, R0 onwards, from its core's CONVENTIONS.md. Use to resolve a number a schema or refusal c

describe_rule — One convention of the vocabulary as written, not a company's own rule (an entity of type `rule`: list_entities, get_entity). Input: `rule`,

list_checks — The checks the model's own gate runs, from the checker release this server was built with. Use to see which rules a script enforces and whic

describe_errors — What a refused call looks like. A tool's output schema covers its answers only, so use this once, to branch on refusals or validate them. No

list_entities — Entities with their frontmatter's short facts, in address order or newest first. Use to browse, or for what runs on a date, came last or has