How to change the charge amount for an active subscription

To change the charge amount of an active subscription, run an HTTP-PATCH request https://subscriptions.xsolla.com​/api/v1/projects/{projectId}/subscriptions/{subscriptionId}/price.

The request must contain an Authorization: Basic <your_authorization_basic_key> header, where <your_authorization_basic_key> is the merchant_id:api_key pair encoded according to the Base64 standard.

Go to Publisher Account to find these parameters:

• merchant_id is shown:
  • In the Project settings > Webhooks section.
  • In the Company settings > Company section.
  • In the URL of the browser’s address bar on any Publisher Account page. The URL has the following format: https://publisher.xsolla.com/&amp;lt;merchant ID>/<Publisher Account section>.
• api_key is shown in Publisher Account only once when it is created and must be stored on your side. You can create a new key in the following section:
  • Company settings > API keys
  • Project settings > API keys

Pass as path parameters:

curl -X PATCH \
'https://subscriptions.xsolla.com/api/v1/projects/{project_id}/subscriptions/{subscription_id}/price' \
  -H 'accept: application/json' \
  -H 'Authorization: Basic'

{
  "amount": 4.99,
  "currency": "USD"
}

Response examples:

• 200 — Charge amount is changed successfully
• 400 — Subscription is not active
• 404 — Subscription is not found