---
title: "Changes to Create a heartbeat check"
method: POST
path: "/v1/checks/heartbeat"
---

# Changes to Create a heartbeat check

`POST /v1/checks/heartbeat`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 4 revisions.

- **2026-08-12** `87d29dc7b4fe` — 14 breaking, 5 warning, 28 info
- **2026-08-05** `9e903da4f3da` — 4 info

## Changes

- **2026-08-12** `87d29dc7b4fe` — 14 breaking, 5 warning, 28 info
  - request body became required
  - request property `frequency` was restricted to a list of enum values
  - the `environmentVariables/items/key` request property's minLength was increased from `0` to `1`
  - the `name` request property's minLength was increased from `0` to `1`
  - the `scriptPath` request property's minLength was increased from `0` to `1`
  - the `tags/items/` request property's minLength was increased from `0` to `1`
  - the `triggerIncident/serviceId` request property's minLength was increased from `0` to `1`
  - the `alertSettings/parallelRunFailureThreshold/percentage` request property type changed from `number` to `integer`
  - the `alertSettings/reminders/amount` request property type changed from `number` to `integer`
  - the `alertSettings/reminders/interval` request property type changed from `number` to `integer`
  - the `alertSettings/runBasedEscalation/failedRunThreshold` request property type changed from `number` to `integer`
  - the `alertSettings/timeBasedEscalation/minutesFailingThreshold` request property type changed from `number` to `integer`
  - the `triggerIncident/serviceId` request property format changed from no format to `uuid`
  - the `created_at` response's property format changed from `date` to `date-time` for status `201`
  - removed the optional property `attributes` from the response with the `402` status
  - removed the optional property `logicalId` from the response with the `201` status
  - removed the optional property `member` from the response with the `201` status
  - removed the optional property `pending` from the response with the `201` status
  - removed the optional property `project` from the response with the `201` status
  - added the new optional request property `checkType`
  - the request property `environmentVariables/items/value` became nullable
  - the request property `request` became nullable
  - the request property `script` became nullable
  - the request property `sslCheckDomain` became nullable
  - the request property `script` became optional
  - the `locations` request property default value `` was added
  - the `tags` request property default value `` was added
  - the `activated` request property default value `true` was removed
  - added the new `0.00` enum value to the request property `frequency`
  - added the new `1.00` enum value to the request property `frequency`
  - added the new `10.00` enum value to the request property `frequency`
  - added the new `120.00` enum value to the request property `frequency`
  - added the new `1440.00` enum value to the request property `frequency`
  - added the new `15.00` enum value to the request property `frequency`
  - added the new `180.00` enum value to the request property `frequency`
  - added the new `2.00` enum value to the request property `frequency`
  - added the new `30.00` enum value to the request property `frequency`
  - added the new `360.00` enum value to the request property `frequency`
  - added the new `5.00` enum value to the request property `frequency`
  - added the new `60.00` enum value to the request property `frequency`
  - …7 more
- **2026-08-05** `9e903da4f3da` — 4 info
  - added the optional property `logicalId` to the response with the `201` status
  - added the optional property `member` to the response with the `201` status
  - added the optional property `pending` to the response with the `201` status
  - added the optional property `project` to the response with the `201` status

---

[Operation](https://skmtc.dev/checklyhq/apis/checkly-public-api/docs/v1/checks/heartbeat/post.md) · [API](https://skmtc.dev/checklyhq/apis/checkly-public-api.md) · [Page](https://skmtc.dev/checklyhq/apis/checkly-public-api/changes/v1/checks/heartbeat/post)