---
title: "Subscribe to usage product"
method: POST
path: "/subscriptions/{subscriptionId}/usages/{id}"
tags: ["Subscriptions"]
---

# Subscribe to usage product

`POST /subscriptions/{subscriptionId}/usages/{id}`

Subscribes the account's usage subscription to a usage product. The subscription is processed asynchronously.
            
Important considerations:
* If the account has no usage subscription yet, one is created as part of processing the request
* A default payment method can optionally be supplied; it must already exist for the customer

## Path parameters

- `subscriptionId` string, required
- `id` string, uuid, required

## Request body

- SubscribeUsageRequest
  - `defaultPaymentMethodId` string, uuid, nullable — Public id of the payment method to set as the default for the usage subscription.

## Response `202`

When request is accepted. Returns a 'Link' object to the subscription.

- Link
  - `id` string, nullable
  - `href` string, nullable
  - `relation` string, nullable
  - `method` string, nullable

## Other responses

- `400` — When the request is invalid.
- `404` — When the usage product or the supplied payment method does not exist.

---

[API](https://skmtc.net/smokeball/apis/api.md) · [All operations](https://skmtc.net/smokeball/apis/api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/smokeball/api/versions/197984da9b42/schema)