---
title: "Create Checkout"
method: POST
path: "/api/billing/checkout"
tags: ["Billing"]
---

# Create Checkout

`POST /api/billing/checkout`

## Request

- Base URL: `https://api.earmarkiq.app` (the document declares no server; this is the origin it was published from)
- URL: `https://api.earmarkiq.app/api/billing/checkout`
- Auth: HTTP bearer

Start a Stripe Checkout for the chosen tier.

## Request body

- CheckoutRequest
  - `tier` 'plus' | 'pro' | 'unlimited', required

## Response `200`

Successful Response

- AppApiStripeBillingSessionResponse
  - `url` string, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/earmarkiq/apis/earmark-api.md) · [All operations](https://skmtc.dev/earmarkiq/apis/earmark-api/llms.txt) · [OpenAPI document](https://skmtc.dev/earmarkiq/apis/earmark-api/revisions/4a2c41907105?raw)
