# Hardcover API

**Canonical:** https://apis.io/apis/hardcover/hardcover-api/  
**Provider:** Hardcover — https://apis.io/providers/hardcover/  
**Base URL:** https://api.hardcover.app  
**Documentation:** https://docs.hardcover.app/api/oauth

Hardcover API is one of 2 APIs that [Hardcover](https://apis.io/providers/hardcover/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. The published artifact set on APIs.io includes an OpenAPI specification and 1 JSON Schema.

Hardcover API as documented publicly: 4 operations. Contract generated from the documentation by API Evangelist (2026-10-28); not the provider's own document.

## Operations (4)

| Method | Path | Summary |
|---|---|---|
| POST | `/oauth2/device` | Initiate a device authorization grant flow. |
| POST | `/oauth2/introspect` | Introspect a token to check its validity (confidential clients only). |
| POST | `/oauth2/revoke` | Revoke an OAuth token. |
| POST | `/oauth2/token` | Exchange authorization code or refresh token for an access token. |

## Machine-readable artifacts (2)

- **OpenAPI** — https://artifacts.apis.io/hardcover/openapi/_ae-authored/hardcover-openapi-generated.yml
- **JSONSchema** — https://artifacts.apis.io/hardcover/json-schema/hardcover-post-oauth2-device-response-schema.json

## Other Hardcover APIs (1)

- [Hardcover GraphQL API](https://apis.io/apis/hardcover/hardcover-graphql-api/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/hardcover/hardcover-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/hardcover/.