---
title: "Checkout Preview"
method: POST
path: "/api/portal/checkout/preview"
---

# Checkout Preview

`POST /api/portal/checkout/preview`

## Request

- Base URL: `https://api.nullprint.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.nullprint.ai/api/portal/checkout/preview`
- Auth: none declared

预估(只读):应付金额、付后档位、新到期日、换档折算天数。入账时按入账那一刻重算,可能差一天以内。

## Request body

- CheckoutBody
  - `catalog_id` integer, required
  - `months` integer, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/nullprint/apis/nullprint-backend.md) · [All operations](https://skmtc.dev/nullprint/apis/nullprint-backend/llms.txt) · [OpenAPI document](https://skmtc.dev/nullprint/apis/nullprint-backend/revisions/51dfcef9dce2?raw)