---
title: "GET /udl/closelyspacedobjects/history/count"
method: GET
path: "/udl/closelyspacedobjects/history/count"
tags: ["Closely Spaced Objects"]
---

# GET /udl/closelyspacedobjects/history/count

`GET /udl/closelyspacedobjects/history/count`

## Request

- Base URL: `https://unifieddatalibrary.com`
- URL: `https://unifieddatalibrary.com/udl/closelyspacedobjects/history/count`
- Auth: none declared

Service operation to return the count of records satisfying the specified query parameters. This operation is useful to determine how many records pass a particular query criteria without retrieving large amounts of data. See the queryhelp operation (`/udl/<datatype>/queryhelp`) for more details on valid/required query parameter information.

## Query parameters

- `eventStartTime` string, date-time, required
- `firstResult` integer
- `maxResults` integer

## Response `200`

OK

## Other responses

- `400`: Bad Request
- `401`: Invalid/Missing User Credentials
- `500`: Internal Server Error

## Changes

> 12 revisions in range; 1 could not be searched.

- **2025-12-15** `7b321e16ea56`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/changes/udl/closelyspacedobjects/history/count/get.md)

---

[API](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api.md) - [All operations](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/llms.txt) - [OpenAPI document](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/revisions/bd17bc53681e?raw)