> 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-statistics.md).

# APIs related to Statistics

The Policy Statistics APIs allow Standard Registries to create, manage, and evaluate statistic definitions — configurable rule sets that assess and score VC documents produced by Guardian policies. Assessments can be created against a definition and their full relationship graphs retrieved for audit and reporting purposes.

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

For the current endpoint list and schemas, see the [Statistics reference](https://guardian.hedera.com/api-reference-guardian/guardian-policies/statistics).