---
title: "Changes to Add add-on to plan"
method: POST
path: "/openmeter/plans/{planId}/addons"
---

# Changes to Add add-on to plan

`POST /openmeter/plans/{planId}/addons`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 107 revisions.

- **2026-07-03** (v3) `3be06f269447`: 2 info
- **2026-05-11** (v3) `9d0042cb3815`: 2 info

## Changes

- **2026-07-03** (v3) `3be06f269447`: 2 info
  - added `#/components/schemas/AddonReference` to the `addon` response property `allOf` list for the response status `201`
  - removed `#/components/schemas/AddonReferenceItem` from the `addon` response property `allOf` list for the response status `201`
- **2026-05-11** (v3) `9d0042cb3815`: 2 info
  - added `#/components/schemas/AddonReferenceItem` to the `addon` response property `allOf` list for the response status `201`
  - removed `#/components/schemas/AddonReference` from the `addon` response property `allOf` list for the response status `201`

---

[Operation](https://skmtc.dev/openmeterio/apis/openmeter-api/docs/openmeter/plans/:planId/addons/post.md) · [API](https://skmtc.dev/openmeterio/apis/openmeter-api.md) · [Page](https://skmtc.dev/openmeterio/apis/openmeter-api/changes/openmeter/plans/:planId/addons/post)