An idiomatic C++ client library for Cloud Billing API, a service that interacts with billing accounts, billing budgets, and billing catalogs.
While this library is GA, please note Google Cloud C++ client libraries do not follow Semantic Versioning.
Quickstart
The following shows the code that you'll run in the google/cloud/billing/quickstart/ directory, which should give you a taste of the Cloud Billing Budget API C++ client library API.
This library offers multiple *Client classes, which are listed below. Each one of these classes exposes all the RPCs for a gRPC service as member functions of the class. This library groups multiple gRPC services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.
The library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the *Client classes when testing your application.
The library automatically retries requests that fail with transient errors, and uses exponential backoff to backoff between retries. Application developers can override the default policies.
More Information
Error Handling - describes how the library reports errors.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the Cloud Billing API C++ Client Library, which is a GA library for interacting with billing accounts, budgets, and catalogs.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available is 2.37.0-rc, but there are many previous versions that are also listed from 2.36.0 to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe library offers \u003ccode\u003e*Client\u003c/code\u003e classes such as \u003ccode\u003eBudgetServiceClient\u003c/code\u003e, \u003ccode\u003eCloudBillingClient\u003c/code\u003e, and \u003ccode\u003eCloudCatalogClient\u003c/code\u003e, which expose RPCs for gRPC services.\u003c/p\u003e\n"],["\u003cp\u003eThe library automatically retries requests with transient errors, using exponential backoff, but also allows application developers to override default policies.\u003c/p\u003e\n"],["\u003cp\u003eThe library does not follow Semantic Versioning.\u003c/p\u003e\n"]]],[],null,["Version 2.11.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/billing/latest)\n- [2.41.0](/cpp/docs/reference/billing/2.41.0)\n- [2.40.0](/cpp/docs/reference/billing/2.40.0)\n- [2.39.0](/cpp/docs/reference/billing/2.39.0)\n- [2.38.0](/cpp/docs/reference/billing/2.38.0)\n- [2.37.0](/cpp/docs/reference/billing/2.37.0)\n- [2.36.0](/cpp/docs/reference/billing/2.36.0)\n- [2.35.0](/cpp/docs/reference/billing/2.35.0)\n- [2.34.0](/cpp/docs/reference/billing/2.34.0)\n- [2.33.0](/cpp/docs/reference/billing/2.33.0)\n- [2.32.0](/cpp/docs/reference/billing/2.32.0)\n- [2.31.0](/cpp/docs/reference/billing/2.31.0)\n- [2.30.0](/cpp/docs/reference/billing/2.30.0)\n- [2.29.0](/cpp/docs/reference/billing/2.29.0)\n- [2.28.0](/cpp/docs/reference/billing/2.28.0)\n- [2.27.0](/cpp/docs/reference/billing/2.27.0)\n- [2.26.0](/cpp/docs/reference/billing/2.26.0)\n- [2.25.1](/cpp/docs/reference/billing/2.25.1)\n- [2.24.0](/cpp/docs/reference/billing/2.24.0)\n- [2.23.0](/cpp/docs/reference/billing/2.23.0)\n- [2.22.1](/cpp/docs/reference/billing/2.22.1)\n- [2.21.0](/cpp/docs/reference/billing/2.21.0)\n- [2.20.0](/cpp/docs/reference/billing/2.20.0)\n- [2.19.0](/cpp/docs/reference/billing/2.19.0)\n- [2.18.0](/cpp/docs/reference/billing/2.18.0)\n- [2.17.0](/cpp/docs/reference/billing/2.17.0)\n- [2.16.0](/cpp/docs/reference/billing/2.16.0)\n- [2.15.1](/cpp/docs/reference/billing/2.15.1)\n- [2.14.0](/cpp/docs/reference/billing/2.14.0)\n- [2.13.0](/cpp/docs/reference/billing/2.13.0)\n- [2.12.0](/cpp/docs/reference/billing/2.12.0)\n- [2.11.0](/cpp/docs/reference/billing/2.11.0) \n\nCloud Billing API C++ Client Library\n====================================\n\nAn idiomatic C++ client library for [Cloud Billing API](https://cloud.google.com/billing/), a service that interacts with billing accounts, billing budgets, and billing catalogs.\n\nWhile this library is **GA** , please note Google Cloud C++ client libraries do **not** follow [Semantic Versioning](https://semver.org/).\n\n### Quickstart\n\nThe following shows the code that you'll run in the `google/cloud/billing/quickstart/` directory, which should give you a taste of the Cloud Billing Budget API C++ client library API. \n\n #include \"google/cloud/billing/v1/cloud_billing_client.h\"\n #include \u003ciostream\u003e\n\n int main(int argc, char* argv[]) try {\n if (argc != 1) {\n std::cerr \u003c\u003c \"Usage: \" \u003c\u003c argv[0] \u003c\u003c \"\\n\";\n return 1;\n }\n\n namespace billing = ::google::cloud::billing_v1;\n auto client =\n billing::CloudBillingClient(billing::MakeCloudBillingConnection());\n\n for (auto a : client.ListBillingAccounts()) {\n if (!a) throw std::move(a).status();\n std::cout \u003c\u003c a-\u003eDebugString() \u003c\u003c \"\\n\";\n }\n\n return 0;\n } catch (google::cloud::Status const& status) {\n std::cerr \u003c\u003c \"google::cloud::Status thrown: \" \u003c\u003c status \u003c\u003c \"\\n\";\n return 1;\n }\n\n### Main classes\n\nThis library offers multiple `*Client` classes, which are listed below. Each one of these classes exposes all the RPCs for a gRPC `service` as member functions of the class. This library groups multiple gRPC services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.\n\nThe library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the `*Client` classes when testing your application.\n\n- [`billing_budgets_v1::BudgetServiceClient`](/cpp/docs/reference/billing/2.11.0/classgoogle_1_1cloud_1_1billing__budgets__v1_1_1BudgetServiceClient)\n- [`billing_v1::CloudBillingClient`](/cpp/docs/reference/billing/2.11.0/classgoogle_1_1cloud_1_1billing__v1_1_1CloudBillingClient)\n- [`billing_v1::CloudCatalogClient`](/cpp/docs/reference/billing/2.11.0/classgoogle_1_1cloud_1_1billing__v1_1_1CloudCatalogClient)\n\n### Retry, Backoff, and Idempotency Policies.\n\nThe library automatically retries requests that fail with transient errors, and uses [exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) to backoff between retries. Application developers can override the default policies.\n\n### More Information\n\n- [Error Handling](https://cloud.google.com/cpp/docs/reference/common/latest/common-error-handling.html) - describes how the library reports errors.\n- [How to Override the Default Endpoint](/cpp/docs/reference/billing/2.11.0/billing-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/billing/2.11.0/billing-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Environment Variables](/cpp/docs/reference/billing/2.11.0/billing-env) - describes environment variables that can configure the behavior of the library."]]