# Service Account A Service Account is an identity that you can create within your account with specific permissions. It shares some similarities with IAM User Accounts. Both Service Accounts and IAM User Accounts are identities with policies that determine what the identity can and cannot do with GreenNode resources. However, a Service Account is an identity used by an application or a machine, rather than a human, to execute authorized API calls and access designated resources. For more information about Service Accounts, please refer to . To access and work with vStorage resources using a Service Account, in addition to the Service Account, you need to create **vStorage Credentials**. These credentials consist of S3 keys and Swift user account pairs, which are attached to that Service Account. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.vngcloud.vn/vng-cloud-document/vstorage/object-storage/vstorage-hcm03/identity-and-access-management/managing-vstorage-access-account/service-account.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.