---
title: "POST /v1/stripe/subscription/existing-customer/upgrade-to-pro"
method: POST
path: "/v1/stripe/subscription/existing-customer/upgrade-to-pro"
tags: ["Stripe"]
---

# POST /v1/stripe/subscription/existing-customer/upgrade-to-pro

`POST /v1/stripe/subscription/existing-customer/upgrade-to-pro`

## Request body

- UpgradeToProRequest
  - `addons` object
    - `evals` boolean
    - `experiments` boolean
    - `prompts` boolean
    - `alerts` boolean
  - `seats` number, double
  - `ui_mode` 'embedded' | 'hosted'

## Response `200`

Ok

- string

---

[API](https://skmtc.net/helicone/apis/helicone-api.md) · [All operations](https://skmtc.net/helicone/apis/helicone-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/helicone/helicone-api/revisions/b369e9e3e80c/schema)