---
title: "PUT /api/billing/addons/cold-email"
method: PUT
path: "/api/billing/addons/cold-email"
tags: ["billing"]
---

# PUT /api/billing/addons/cold-email

`PUT /api/billing/addons/cold-email`

## Request

- Base URL: `https://app.heykairon.com` (the document declares no server; this is the origin it was published from)
- URL: `https://app.heykairon.com/api/billing/addons/cold-email`
- Auth: API key in header `x-api-key`

## Request body

- ColdEmailDto
  - `tier` 'cold_email_1k' | 'cold_email_25k', required

## Response `200`

---

[API](https://skmtc.dev/heykairon/apis/kairon-api.md) · [All operations](https://skmtc.dev/heykairon/apis/kairon-api/llms.txt) · [OpenAPI document](https://skmtc.dev/heykairon/apis/kairon-api/revisions/35de550d5938?raw)