---
title: "Change Plan Preview"
method: GET
path: "/payments/change-plan/preview"
tags: ["payments"]
---

# Change Plan Preview

`GET /payments/change-plan/preview`

## Request

- Base URL: `https://api.openproof.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.openproof.io/payments/change-plan/preview`
- Auth: HTTP bearer

What a plan change would cost, so the customer sees the amount before anything is charged.

## Query parameters

- `plan_key` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/openproof/apis/openproof-api.md) · [All operations](https://skmtc.dev/openproof/apis/openproof-api/llms.txt) · [OpenAPI document](https://skmtc.dev/openproof/apis/openproof-api/revisions/ddd0cac7c37e?raw)