CompanyGraph

Name: CompanyGraph
Author: io.companygraph

MCP serverMCP

CompanyGraph: Written once, read by both

by io.companygraphv1.0.0

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Evidence

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30-day availability64/64 checks ok

when	check	result	http	latency	detail
4 h ago	mcp initialize	ok	200	49 ms	server companygraph-mcp-server 0.62.0 · protocol 2025-06-18 · 14 tools
11 h ago	mcp initialize	ok	200	41 ms	server companygraph-mcp-server 0.61.0 · protocol 2025-06-18 · 14 tools
17 h ago	mcp initialize	ok	200	45 ms	server companygraph-mcp-server 0.61.0 · protocol 2025-06-18 · 14 tools
23 h ago	mcp initialize	ok	200	48 ms	server companygraph-mcp-server 0.60.0 · protocol 2025-06-18 · 14 tools
30 h ago	mcp initialize	ok	200	48 ms	server companygraph-mcp-server 0.60.0 · protocol 2025-06-18 · 14 tools
35 h ago	mcp initialize	ok	200	58 ms	server companygraph-mcp-server 0.60.0 · protocol 2025-06-18 · 14 tools
2 d ago	mcp initialize	ok	200	51 ms	server companygraph-mcp-server 0.60.0 · protocol 2025-06-18 · 14 tools
2 d ago	mcp initialize	ok	200	63 ms	server companygraph-mcp-server 0.58.0 · protocol 2025-06-18 · 14 tools
2 d ago	mcp initialize	ok	200	115 ms	server companygraph-mcp-server 0.58.0 · protocol 2025-06-18 · 14 tools
3 d ago	mcp initialize	ok	200	58 ms	server companygraph-mcp-server 0.58.0 · protocol 2025-06-18 · 14 tools

Tools observed via MCP handshake

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`, each with `type`, `na
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 whole vocabulary use de
describe_relations — What the schemas declare between types: references with form and cardinality, ownership, enums, joins, list kinds. Use for a diagram or audit; for one type's fu
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 cites, such as R9. A
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`, a number from list_r
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 which are left to a read
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 input. Returns `err
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 a value; to find by
get_entity — One entity as structured data: fields, sections, tables, references both ways. Use to reason over one; for its page as written use fetch. Input: `id` or address
list_references — The model's edges, filtered and paged. Use to inspect one entity's relations or one kind of reference without taking whole entities. Optional `entity` (an id or
find_evidence — Every edge into one skill, grouped by the type of the page that drew it. Use to check a claimed skill against its evidence. Input: `skill`, an id, canonical nam
search — Find entities by words, substring or exact name. `match: "words"` needs every query word's stem in name, tagline, fields, sections or cells; `"text"` (default)
fetch — One entity's page as written. Use to quote or display the source; for structured fields and references use get_entity. Input: `id` or address, from search, list
diagram — A picture of the model as Mermaid, from edges or schemas. Use to show connections; for edge data use list_references. Input: `shape`; `id`, `domain` or `type` n

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryio.companygraph/mental-model

first seen 17 d ago · fetched 20 h agoopen ↗

Field history (5 recent events)

17 d ago · declared · summary → "CompanyGraph: Written once, read by both"
17 d ago · declared · description → "CompanyGraph: Written once, read by both"
17 d ago · declared · publisherName → "io.companygraph"
17 d ago · declared · version → "1.0.0"
17 d ago · declared · protocols → ["mcp"]

CompanyGraph

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