Hardcover GraphQL API

Query your reading library, book metadata, and search Hardcover's catalog.

Configuration

• Env variable: HARDCOVER_API_TOKEN from https://hardcover.app/settings
• Endpoint: https://api.hardcover.app/v1/graphql
• Rate limit: 60 req/min, 30s timeout, max 3 query depth

Authentication

All queries require Authorization: Bearer {token} header (token from settings, add Bearer prefix):