All use of the Cloud Billing APIs is free of charge. The Cloud Billing APIs include:

  • Cloud Billing Account API
  • Cloud Billing Catalog API
  • Cloud Billing Budget API

Note that budgets and alerts are free to use for Google Cloud Platform customers, but you will be charged the standard Cloud Pub/Sub prices for budget notifications.

Note that if you are using BigQuery to store Cloud Billing usage data, you will incur minimal fees. For more information, see BigQuery Pricing.

For pricing details on other GCP products, see the GCP price list.

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