linear-api

Linear has a single GraphQL endpoint — there is no REST API. Every read is a query, every write is a mutation, and everything goes to one URL. Don't look for /api/v1/issues-style paths; they don't exist.

POST https://api.linear.app/graphql

Two ID systems coexist:

• UUID (id) — what the API uses everywhere for lookups and mutations.
• Identifier (identifier, e.g. ENG-123) — the human-readable key shown in the UI. You can fetch an issue by identifier with issue(id: "ENG-123") (Linear accepts both).

Request setup