---
title: "Billing Portal"
method: GET
path: "/billing/portal"
tags: ["billing"]
---

# Billing Portal

`GET /billing/portal`

## Request

- Base URL: `https://mcp.sentinelx.app` (the document declares no server; this is the origin it was published from)
- URL: `https://mcp.sentinelx.app/billing/portal`
- Auth: none declared

Open the Polar customer portal for the logged-in user, where an existing
subscriber changes tier / billing period or cancels. Requires a dashboard
session. 303-redirects to Polar's hosted portal.

## Cookies

- `sentinelx_dash_session` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/sentinelx/apis/sentinelx-hub.md) · [All operations](https://skmtc.dev/sentinelx/apis/sentinelx-hub/llms.txt) · [OpenAPI document](https://skmtc.dev/sentinelx/apis/sentinelx-hub/revisions/d1f84924795e?raw)