---
title: "Review the prorated charge for a paid Pro-to-Max upgrade"
method: POST
path: "/api/credits/subscription/preview"
tags: ["v1", "credits"]
---

# Review the prorated charge for a paid Pro-to-Max upgrade

`POST /api/credits/subscription/preview`

## Request

- The document declares no server URL.
- Auth: HTTP bearer

## Request body

- SubscriptionUpgradePreviewRequest
  - `tier` 'MAX', required
  - `billing_cycle` 'monthly' | 'yearly'

## Response `200`

Successful Response

- SubscriptionUpgradePreview
  - `preview_id` string, required
  - `amount_due` integer, required
  - `tax_amount` integer, nullable, required
  - `tax_included` boolean, required
  - `adjustment_amount` integer, required
  - `currency` string, required
  - `proration_date` integer, required
  - `period_end` integer, required
  - `expires_at` integer, required
  - `recurring_amount` integer, required
  - `recurring_tax_included` boolean, required
  - `billing_cycle` 'monthly' | 'yearly', required
  - `lines` UpgradeProrationLine[], required
    - `description` string, required
    - `amount` integer, required
    - `period_start` integer, required
    - `period_end` integer, required
    - `proration` boolean, required

## Other responses

- `401`: Authentication required
- `422`: Validation Error

## Changes

- **2026-10-16** `ad42c53e22ca`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/significant-gravitas/apis/autogpt-agent-server/changes/api/credits/subscription/preview/post.md)

---

[API](https://skmtc.dev/significant-gravitas/apis/autogpt-agent-server.md) - [All operations](https://skmtc.dev/significant-gravitas/apis/autogpt-agent-server/llms.txt) - [OpenAPI document](https://skmtc.dev/significant-gravitas/apis/autogpt-agent-server/revisions/c508818c16ad?raw)