> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cocoondata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# <access-service>/api/v1/items/delta

## URL structure&#x20;

```text theme={null}
https://access-service.xy-company.com/api/v1/items/delta
```

## Supported methods and overview&#x20;

* `GET` - used to retrieve lists of changes to the currently authenticated Covata user's<sup>\*</sup> [Secure Objects](/3.2/api/creating-files-and-folders.md#secure-object) and [collections](/3.2/api/creating-files-and-folders.md#collection) (i.e. [items](/3.2/api/creating-files-and-folders.md#item)).

## Detailed description&#x20;

This API endpoint retrieves lists of changes to the currently authenticated Covata user's<sup>\*</sup> Secure Objects and collections from a given point in time, which includes separate lists for:

* New items (added),
* Deleted items (removed) and
* Modified items.

## Supported roles&#x20;

This API endpoint supports the following Covata user roles (as described in the [Covata Platform Administrator's Guide](/3.2/admin.md)):

* [Originator](/3.2/admin-org/administering-users-within-an-organisation.md#originator-role)
* [Collaborator](/3.2/admin-org/administering-users-within-an-organisation.md#collaborator-role)

The Covata Platform's resources available to one of these Covata users (above) is determined by the access token passed in the [header](/3.2/api/access-service-api-v1-items-delta.md#access-service-api-v1-items-delta-required-headers) of requests to this endpoint.

## Required headers&#x20;

The appropriate access token as the `Bearer` token:

* `Authorization: Bearer a1b2c3d4-e5f6-g7h8-i9j0-k1l2m3n4o5p6`

## Optional parameters&#x20;

The following optional parameters can be sent in the URL of the GET request:

* **cursor** - The cursor value returned from the previous request to this API endpoint. The default value is `0`.
* **pageSize** - 1 to 100 (default is 10).

  **Example ():**

## Returns&#x20;

A JSON-formatted response containing the following members:

* **added** - .
* **removed** - .
* **modified** - .
* **cursor** - An ID value representing the current point in time from which a subsequent call to this API endpoint can generate new (i.e. subsequent) lists of changes to the currently authenticated Covata user's items.

  **Example (response from ...):**

<sup>\*</sup> The currently authenticated user is determined by the access token passed in the [header](/3.2/api/access-service-api-v1-items-delta.md#access-service-api-v1-items-delta-required-headers) of requests to this endpoint.


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