> For AI agents: the complete documentation index is available at https://types-mediawiki-response.pages.dev/zh/llms.txt, the full documentation bundle is available at https://types-mediawiki-response.pages.dev/zh/llms-full.txt.

# Type Alias: ApiErrorResponse

> **ApiErrorResponse** = [`ApiBcErrorResponse`](https://types-mediawiki-response.pages.dev/zh/api/core/ApiBcErrorResponse.md) | [`ApiModernErrorResponse`](https://types-mediawiki-response.pages.dev/zh/api/core/ApiModernErrorResponse.md)

Defined in: [envelope/index.ts:221](https://github.com/BearBin1215/types-mediawiki-response/blob/d354a9c689faf74c19e13b617a83dcdb7a83726f/src/envelope/index.ts#L221)

An API response describing a failed request (either `errorformat` family).