---
title: "Changes to Register client usage metrics"
method: POST
path: "/api/frontend/client/metrics"
---

# Changes to Register client usage metrics

`POST /api/frontend/client/metrics`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 7 revisions.

- **2026-07-31** `fe6260d233aa`: 2 info
- **2026-06-15** `b3d595aaaa7a`: 1 warning, 2 info
- **2026-02-11** `2e02c84cb2ab`: 1 info

## Changes

- **2026-07-31** `fe6260d233aa`: 2 info
  - added the new optional request property `sdkFlavor`
  - added the new optional request property `sdkFlavorVersion`
- **2026-06-15** `b3d595aaaa7a`: 1 warning, 2 info
  - removed the request property `environment`
  - the request property `bucket` became nullable
  - the request property `bucket` became optional
- **2026-02-11** `2e02c84cb2ab`: 1 info
  - the request property `bucket/toggles/additionalProperties/variants` became nullable

---

[Operation](https://skmtc.dev/unleash/apis/unleash-api/docs/api/frontend/client/metrics/post.md) - [API](https://skmtc.dev/unleash/apis/unleash-api.md) - [Page](https://skmtc.dev/unleash/apis/unleash-api/changes/api/frontend/client/metrics/post)