Shopify-sized SDL does not fit in a context window, and pasting a fragment leaves the model inventing fields. Listing first and fetching one field at a time keeps the lookups small enough to stay accurate.
A server that loads one GraphQL schema file and exposes it as navigable structure. Queries, mutations and subscriptions can be listed or fetched one field at a time; types can be looked up whole or by their fields; and everything is searchable by pattern. Internal GraphQL types are filtered out.
- Every query, mutation and subscription field, listed
- One field at a time in detail, with its type and arguments
- Every type in the schema, and any single type's definition
- A type's fields on their own, when the full definition is more than you need
- Pattern search across types and fields, for when you know part of a name
- Internal GraphQL introspection types filtered out of results
A GraphQL schema file — the server takes its path as a command line argument and defaults to schema.graphqls in the working directory. Runs through npx with no install and no key. It reads a file, so it never touches your live API.
One command — npx -y mcp-graphql-schema