# MemoryDB API permissions: Actions, resources, and conditions reference When you set up [access control](iam.md#iam.accesscontrol) and write permissions policies to attach to an IAM policy (either identity-based or resource-based), use the following table as a reference. The table lists each MemoryDB API operation and the corresponding actions for which you can grant permissions to perform the action. You specify the actions in the policy's `Action` field, and you specify a resource value in the policy's `Resource` field. Unless indicated otherwise, the resource is required. Some fields include both a required resource and optional resources. When there is no resource ARN, the resource in the policy is a wildcard (\$1). **Note** To specify an action, use the `memorydb:` prefix followed by the API operation name (for example, `memorydb:DescribeClusters`). Use the scroll bars to see the rest of the table. **MemoryDB API and required permissions for actions** | MemoryDB API operations | Required permissions (API actions) | Resources | | --- | --- | --- | | [BatchUpdateCluster](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_BatchUpdateCluster.html) | `memorydb:BatchUpdateCluster` | Cluster | | [CopySnapshot](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CopySnapshot.html) | `memorydb:CopySnapshot` `memorydb:TagResource` `s3:GetBucketLocation` `s3:ListAllMyBuckets` | Snapshot (Source, Target) \$1 \$1 | | [CreateCluster](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CreateCluster.html) | `memorydb:CreateCluster` `memorydb:TagResource` `s3:GetObject` If you use the `SnapshotArns` parameter, each member of the `SnapshotArns` list requires its own `s3:GetObject` permission with the `s3` ARN as its resource. | Parameter group. (Optional) cluster, snapshot, security group Ids and subnet group `arn:aws:s3:::my_bucket/snapshot1.rdb` Where *my\$1bucket*/*snapshot1* is an S3 bucket and snapshot that you want to create the cluster from. | | [CreateParameterGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CreateParameterGroup.html) | `memorydb:CreateParameterGroup` `memorydb:TagResource` | Parameter group | | [CreateSubnetGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CreateSubnetGroup.html) | `memorydb:CreateSubnetGroup` `memorydb:TagResource` | Subnet group | \$1 | | [CreateSnapshot](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CreateSnapshot.html) | `memorydb:CreateSnapshot` `memorydb:TagResource` | Snapshot, cluster | | [CreateUser](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CreateUser.html) | `memorydb:CreateUser` `memorydb:TagResource` | User | | [CreateACL](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_CreateACL.html) | `memorydb:CreateACL` `memorydb:TagResource` | Access Control List (ACL) | | [UpdateCluster](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UpdateCluster.html) | `memorydb:UpdateCluster` | Cluster | | [DeleteCluster](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DeleteCluster.html) | `memorydb:DeleteCluster` | Cluster. (Optional) Snapshot | | [DeleteParameterGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DeleteParameterGroup.html) | `memorydb:DeleteParameterGroup` | Parameter group | | [DeleteSubnetGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DeleteSubnetGroup.html) | `memorydb:DeleteSubnetGroup` | Subnet group | | [DeleteSnapshot](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DeleteSnapshot.html) | `memorydb:DeleteSnapshot` | Snapshot | | [DeleteUser](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DeleteUser.html) | `memorydb:DeleteUser` | User | | [DeleteACL](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DeleteACL.html) | `memorydb:DeleteACL` | ACL | | [DescribeClusters](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeClusters.html) | `memorydb:DescribeClusters` | Cluster | | [DescribeEngineVersions](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeEngineVersions.html) | `memorydb:DescribeEngineVersions` | No Resource ARN: \$1 | | [DescribeParameterGroups](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeParameterGroups.html) | `memorydb:DescribeParameterGroups` | Parameter group | | [DescribeParameters](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeParameters.html) | `memorydb:DescribeParameters` | Parameter group | | [DescribeSubnetGroups](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeSubnetGroups.html) | `memorydb:DescribeSubnetGroups` | Subnet group | \$1 | | [DescribeEvents](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeEvents.html) | `memorydb:DescribeEvents` | No Resource ARN: \$1 | | [DescribeClusters](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeClusters.html) | `memorydb:DescribeClusters` | Cluster | | [DescribeServiceUpdates](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeServiceUpdates.html) | `memorydb:DescribeServiceUpdates` | No Resource ARN: \$1 | | [DescribeSnapshots](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeSnapshots.html) | `memorydb:DescribeSnapshots` | Snapshot | | [DescribeUsers](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeUsers.html) | `memorydb:DescribeUsers` | User | | [DescribeACLs](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_DescribeACLs.html) | `memorydb:DescribeACLs` | ACLs | | [ListAllowedNodeTypeUpdates](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_ListAllowedNodeTypeUpdates.html) | `memorydb:ListAllowedNodeTypeUpdates` | Cluster | | [ListTags](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_ListTags.html) | `memorydb:ListTags` | (Optional) cluster, snapshot | | [UpdateParameterGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UpdateParameterGroup.html) | `memorydb:UpdateParameterGroup` | Parameter group | | [UpdateSubnetGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UpdateSubnetGroup.html) | `memorydb:UpdateSubnetGroup` | Subnet group | | [UpdateCluster](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UpdateCluster.html) | `memorydb:UpdateCluster` | cluster. (Optional) Parameter group, Security group | | [UpdateUser](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UpdateUser.html) | `memorydb:UpdateUser` | User | | [UpdateACL](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UpdateACL.html) | `memorydb:UpdateACL` | ACL | | [UntagResource](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_UntagResource.html) | `memorydb:UntagResource` | (Optional) Cluster, snapshot | | [ResetParameterGroup](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_ResetParameterGroup.html) | `memorydb:ResetParameterGroup` | Parameter group | | [FailoverShard](https://docs.aws.amazon.com/memorydb/latest/APIReference/API_FailoverShard.html) | `memorydb:FailoverShard` | cluster, shard |