<p>Gets a list of all grants for the specified KMS key. </p> <p>You must specify the KMS key in all requests. You can filter the grant list by grant ID or grantee principal.</p> <p>For detailed information about grants, including grant terminology, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/grants.html">Grants in KMS</a> in the <i> <i>Key Management Service Developer Guide</i> </i>. For examples of working with grants in several programming languages, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/programming-grants.html">Programming grants</a>. </p> <note> <p>The <code>GranteePrincipal</code> field in the <code>ListGrants</code> response usually contains the user or role designated as the grantee principal in the grant. However, when the grantee principal in the grant is an Amazon Web Services service, the <code>GranteePrincipal</code> field contains the <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_principal.html#principal-services">service principal</a>, which might represent several different grantee principals.</p> </note> <p> <b>Cross-account use</b>: Yes. To perform this operation on a KMS key in a different Amazon Web Services account, specify the key ARN in the value of the <code>KeyId</code> parameter.</p> <p> <b>Required permissions</b>: <a href="https://docs.aws.amazon.com/kms/latest/developerguide/kms-api-permissions-reference.html">kms:ListGrants</a> (key policy)</p> <p> <b>Related operations:</b> </p> <ul> <li> <p> <a>CreateGrant</a> </p> </li> <li> <p> <a>ListRetirableGrants</a> </p> </li> <li> <p> <a>RetireGrant</a> </p> </li> <li> <p> <a>RevokeGrant</a> </p> </li> </ul>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}