Vertex AI 기반 Gemini를 사용하려면 Google Cloud API 키를 사용하거나 애플리케이션 기본 사용자 인증 정보를 사용하여 인증해야 합니다. 테스트에는 API 키를, 프로덕션에는 애플리케이션 기본 사용자 인증 정보를 사용하는 것이 좋습니다. 이 페이지에서는 애플리케이션 기본 사용자 인증 정보를 구성하는 방법을 보여줍니다.
시작하기 전에
프로젝트 선택, 결제 사용 설정, Vertex AI API 사용 설정, gcloud CLI 설치
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-09-04(UTC)"],[],[],null,["# Configure application default credentials\n\nTo use Gemini on Vertex AI, you need to authenticate by using\na [**Google Cloud API key**](/vertex-ai/generative-ai/docs/start/api-keys) or by using\n**application default credentials**. We recommend using an API key for testing\nand using application default credentials for production. This page shows you\nhow to configure application default credentials.\n\nBefore you begin\n----------------\n\n#### Select a project, enable billing, enable the Vertex AI API, install gcloud CLI\n\n- [Sign in](https://accounts.google.com/Login) to your Google Account.\n\n If you don't already have one, [sign up for a new account](https://accounts.google.com/SignUp).\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Vertex AI API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=aiplatform.googleapis.com)\n-\n [Install](/sdk/docs/install) the Google Cloud CLI.\n\n- If you're using an external identity provider (IdP), you must first\n [sign in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n\n-\n To [initialize](/sdk/docs/initializing) the gcloud CLI, run the following command:\n\n ```bash\n gcloud init\n ```\n\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Vertex AI API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=aiplatform.googleapis.com)\n-\n [Install](/sdk/docs/install) the Google Cloud CLI.\n\n- If you're using an external identity provider (IdP), you must first\n [sign in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n\n-\n To [initialize](/sdk/docs/initializing) the gcloud CLI, run the following command:\n\n ```bash\n gcloud init\n ```\n\nCreate local authentication credentials\n---------------------------------------\n\n-\n\n Create local authentication credentials for your user account:\n\n ```bash\n gcloud auth application-default login\n ```\n\n\n If an authentication error is returned, and you are using an external identity provider\n (IdP), confirm that you have\n [signed in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n\nMake your first API request\n---------------------------\n\n- After configuring application default credentials, learn how to make your first request in the [API quickstart](/vertex-ai/generative-ai/docs/start/quickstart?usertype=adc)."]]
