# Querying API


Use the Querying API to fetch multiple pages of search results sequentially. This REST API lets you to retrieve entities that match specific criteria. <br><br> When using the Querying API, keep the following considerations in mind:
- Due to deep paging considerations the querying endpoint is limited to retrieve up to 10,000 results.
- When search results are sorted on a property and there are multiple results that have the same value for that property, then those results are displayed in random order. To address this limitation, use a secondary sort property as a tie-breaker.
- When you run a query, make sure you include all the entity members that you want to retrieve. If you omit the members parameter, the response will return all the existing entity members (all properties, all relations, and so on). To ensure optimal performance, only request the members you actually need.
- The API is configured to only load the related paths that are specified in a query. If you don't specify related path relations in your query, the response won't return any. <br> {% admonition type="info" name="Note" %}You must set the `X-ApiVersion` header to 3.{% /admonition %}
## Authentication
To use the Querying API, you need:
- The URL of your Content Hub server. You can get this from your Content Hub
  Administrator. Enter this URL in the <b>{{server}}</b> variable by hovering your mouse
  over the variable in the <b>Try it</b> pane and then clicking <b>Edit</b>.

- An access token and the client ID. Both are sent with every request. You 
  can create a token through the [Content Hub
  interface](https://doc.sitecore.com/ch/en/users/content-hub/create-an-oauth-client.html) 
  or by [requesting one using the API
  itself](https://doc.sitecore.com/ch/en/developers/cloud-dev/oauth-tokens.html#grant-flows).


Version: v3.0
License: closed source

Metadata:
  - product: Content Hub

## Servers

```
https://{server}
```

Variables:
- `server`
  Default: "your-server"

## Security

### OAuth2.0

Type: oauth2
Token URL: /oauth/token
Scopes:

## Download OpenAPI description

 - [Querying API](https://api-docs.sitecore.com/_bundle/ch/querying-api/@v3.0/index.yaml)

## Querying

 - [POST /api/entities/query](https://api-docs.sitecore.com/ch/querying-api/querying/entitiesbyqueryv3.md): Lists entities that match the query in a request body. The Querying API supports various [operators](#tag/querying) for filter types that use an `operator` field. Relation filters do not support oper
 - [POST /api/entities/scroll](https://api-docs.sitecore.com/ch/querying-api/querying/entitiesbyscrollv3.md): Lists all entities using a scroll-based query for efficient large result set traversal. The Querying API supports various [operators](#tag/querying) for filter types that use an `operator` field. Rela
 - [POST /api/entities/searchAfter](https://api-docs.sitecore.com/ch/querying-api/querying/entitiesbysearchafterv3.md): Lists all entities that match the criteria. This endpoint supports sorted pagination using the `search-after` property. For additional information, see the [SearchAfter API (V3) developer documentati