> For the complete documentation index, see [llms.txt](https://dev.guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.guardian.hedera.com/developer-tools-and-resources/logging-configuration/apis-related-to-schema-rules.md).

# APIs related to Schema Rules

Schema Rules define validation rule sets applied to schema documents within policies. Rules specify field-level constraints, cross-field dependencies, and data quality checks beyond basic JSON Schema validation.

**Authentication:** All endpoints require a Bearer JWT token (`Authorization: Bearer <token>`). Obtain a token via `POST /accounts/login`.

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For the current endpoint list and schemas, see the [Schema Rules reference](https://guardian.hedera.com/api-reference-guardian/guardian-schemas/schema-rules).