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

# Overview

The Segment API lets you **create and manage Segments** — a Segment is a dynamic, filtered view of one Audience (a saved filter condition evaluated over that audience's contacts), or a static snapshot of a Campaign's dialed contacts filtered the same way.

* Use **Create Segment** to build a segment from an audience's contacts or a campaign's dial results.
* Use **Preview Segment** to test filter conditions against an audience before saving.
* Use **List Segments** to retrieve the paginated Segment tab.
* Use **Segment Summary List** to get a lightweight id/name/count list for dropdowns.
* Use **Segment Details** to retrieve one segment's full configuration.
* Use **Update Segment** to modify a segment, or soft-delete it.
* Use **List Segment Contacts** to retrieve a segment's contact list.
* Use **Export Segment Contacts** to download a segment's contacts as an Excel file.

## Related endpoints

* [Create Segment](/api-reference/segment/create-segment)
* [Preview Segment](/api-reference/segment/preview-segment)
* [List Segments](/api-reference/segment/list-segments)
* [Segment Summary List](/api-reference/segment/segment-summary-list)
* [Segment Details](/api-reference/segment/segment-details)
* [Update Segment](/api-reference/segment/update-segment)
* [List Segment Contacts](/api-reference/segment/list-segment-contacts)
* [Export Segment Contacts](/api-reference/segment/export-segment-contacts)