> For the complete documentation index, see [llms.txt](https://api.clearinghouse.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api.clearinghouse.net/api-reference-v2/new-features/query-behavior.md).

# Query Behavior

API v2.0 supports flexible query parameters so you can filter and retrieve exactly the records you need.

## Filtering

You can retrieve resources, documents, and dockets associated with a specific case by including the case parameter in your request. For example:

* **Filter cases by type:** `/api/v2/case/?case_type=5039`
* **Filter resources associated with a specific case:** `/api/v2/resources/?case=15150`

**Note: You cannot filter records without specifying a case. For example:** `/api/v2/documents/?document_status=Approved` Will return

```json
{"detail": "The 'case' query parameter is required."}
```

When accessing the URL endpoints for resources, documents, or dockets, please refer to these pages for detailed response examples:

* [Documents](/api-reference-v2/objects/document.md)
* [Resources](/api-reference-v2/objects/resource.md)
* [Dockets](/api-reference-v2/objects/docket.md)