> For the complete documentation index, see [llms.txt](https://spaceone-dev.gitbook.io/api-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://spaceone-dev.gitbook.io/api-reference/common-v1.md).

# Common V1

- [Search Query](https://spaceone-dev.gitbook.io/api-reference/common-v1/search-query.md): API's basic search query specifications which implements search over regex, etc.
- [Filter Operators](https://spaceone-dev.gitbook.io/api-reference/common-v1/search-query/filter-options.md): Default filter and Custom filter operator and its descriptions
- [Statistics Query](https://spaceone-dev.gitbook.io/api-reference/common-v1/statistics-query.md): Basic query for statistics
- [Ex.1 case: Project](https://spaceone-dev.gitbook.io/api-reference/common-v1/statistics-query/ex.1-case-project.md): Sample statistics query case of Project