# S3 API Compatibility LLMS index: [llms.txt](/llms.txt) --- This page documents S3 APIs supported by MinIO Object Storage. For reference documentation on any given API, see the corresponding documentation for Amazon S3. > [!WARNING] > **Important** > > MinIO strongly recommends using an [S3-Compatible SDK](/developers/minio-drivers/#minio-drivers) for performing object storage operations. ## Object APIs {#object-apis} - [CopyObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_CopyObject.html) - [DeleteObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObject.html) - [DeleteObjects](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjects.html) - Conditional delete is not supported: `DeleteObject` ignores the HTTP `If-Match` header and `DeleteObjects` ignores each `` element; both delete unconditionally ([#10](https://github.com/pgsty/silo/issues/10)). - [DeleteObjectTagging](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjectTagging.html) - [GetObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html) - [GetObjectAttributes](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectAttributes.html) - [GetObjectTagging](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectTagging.html) - [HeadObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html) - [ListObjects](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjects.html) - [ListObjectsV2](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html) - [ListObjectVersions](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectVersions.html) - [PutObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObject.html) - [PutObjectTagging](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObjectTagging.html) - [RestoreObject](https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html) - [SelectObjectContent](https://docs.aws.amazon.com/AmazonS3/latest/API/API_SelectObjectContent.html) ### Object Locking {#object-locking} - [GetObjectRetention](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectRetention.html) - [PutObjectRetention](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObjectRetention.html) - [GetObjectLegalHold](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectLegalHold.html) - [PutObjectLegalHold](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObjectLegalHold.html) - [GetObjectLockConfiguration](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectLockConfiguration.html) - [PutObjectLockConfiguration](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObjectLockConfiguration.html) ### Unsupported API Object Endpoints {#unsupported-api-object-endpoints} ```text GetObjectAcl PutObjectAcl ``` ### Multipart Uploads {#multipart-uploads} - [AbortMultipartUpload](https://docs.aws.amazon.com/AmazonS3/latest/API/API_AbortMultipartUpload.html) - [CompleteMultipartUpload](https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html) - [CreateMultipartUpload](https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateMultipartUpload.html) - [ListMultipartUploads](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListMultipartUploads.html) - [ListParts](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListParts.html) - [UploadPart](https://docs.aws.amazon.com/AmazonS3/latest/API/API_UploadPart.html) - [UploadPartCopy](https://docs.aws.amazon.com/AmazonS3/latest/API/API_UploadPartCopy.html) #### Differences from S3 APIs for Multipart Uploads {#differences-from-s3-apis-for-multipart-uploads} - `ListMultipartUploads` currently treats a non-empty `prefix` as an exact object name instead of a lexical key prefix. - With an empty prefix, its result comes from node-local volatile state and does not provide AWS-compatible pagination, marker, or delimiter behavior. See the [issue #79 design and decision record](/blog/design/list-multipart-uploads/) for the verified impact and proposed repair. - The `AbortIncompleteMultipartUpload` lifecycle action is not supported with `PutBucketLifecycle`. ## Bucket APIs {#bucket-apis} - [CreateBucket](https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateBucket.html) - [DeleteBucket](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucket.html) - [DeleteBucketEncryption](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketEncryption.html) - [DeleteBucketTagging](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketTagging.html) - [GetBucketEncryption](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketEncryption.html) - [GetBucketLocation](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketLocation.html) - [GetBucketTagging](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketTagging.html) - [GetBucketVersioning](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketVersioning.html) - [HeadBucket](https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadBucket.html) - [ListBuckets](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListBuckets.html) - [ListDirectoryBuckets](https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListDirectoryBuckets.html) - [PutBucketEncryption](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketEncryption.html) - [PutBucketTagging](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketTagging.html) - [PutBucketVersioning](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketVersioning.html) ### Bucket Replication {#bucket-replication} - [GetBucketReplication](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketReplication.html) - [PutBucketReplication](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketReplication.html) - [DeleteBucketReplication](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketReplication.html) ### Bucket Lifecycle {#bucket-lifecycle} - [GetBucketLifecycle](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketLifecycle.html) - [GetBucketLifecycleConfiguration](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketLifecycleConfiguration.html) - [PutBucketLifecycle](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketLifecycle.html) - [PutBucketLifecycleConfiguration](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketLifecycleConfiguration.html) - [DeleteBucketLifecycle](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketLifecycle.html) ### Bucket Notifications {#bucket-notifications} - [GetBucketNotification](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketNotification.html) - [GetBucketNotificationConfiguration](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketNotificationConfiguration.html) - [PutBucketNotification](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketNotification.html) - [PutBucketNotificationConfiguration](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketNotificationConfiguration.html) ### Bucket Policies {#bucket-policies} - [GetBucketPolicy](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketPolicy.html) - [GetBucketPolicyStatus](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketPolicyStatus.html) - [PutBucketPolicy](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketPolicy.html) - [DeleteBucketPolicy](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketPolicy.html) - [GetBucketCors](https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketCors.html) - [PutBucketCors](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketCors.html) - [DeleteBucketCors](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketCors.html) ### Unsupported API Bucket Operations {#unsupported-api-bucket-operations} ```text GetBucketInventoryConfiguration PutBucketInventoryConfiguration DeleteBucketInventoryConfiguration GetBucketMetricsConfiguration PutBucketMetricsConfiguration DeleteBucketMetricsConfiguration PutBucketWebsite GetBucketLogging PutBucketLogging PutBucketAccelerateConfiguration DeleteBucketAccelerateConfiguration PutBucketRequestPayment DeleteBucketRequestPayment PutBucketAcl HeadBucketAcl GetPublicAccessBlock PutPublicAccessBlock DeletePublicAccessBlock GetBucketOwnershipControls PutBucketOwnershipControls DeleteBucketOwnershipControls GetBucketIntelligentTieringConfiguration PutBucketIntelligentTieringConfiguration ListBucketIntelligentTieringConfigurations DeleteBucketIntelligentTieringConfiguration GetBucketAnalyticsConfiguration PutBucketAnalyticsConfiguration ListBucketAnalyticsConfigurations DeleteBucketAnalyticsConfiguration CreateSession ``` ### MinIO alternatives for unsupported Bucket resources {#minio-alternatives-for-unsupported-bucket-resources} - For calls to `BucketACL` or `ObjectACL` operations, use [Policies](/administration/identity-access-management/policy-based-access-control/#minio-policy). - `BucketCORS` operations are supported since `RELEASE.2026-09-03T13-18-01Z`. A bucket with its own CORS configuration is served only by that configuration; buckets without one use the server-wide `MINIO_API_CORS_ALLOW_ORIGIN` policy, which allows every origin by default. - For calls to `BucketWebsite` operations, use `caddy` or `nginx`. - For calls to `BucketAnalytics`, `BucketMetrics`, or `BucketLogging` operations, use [Bucket Notifications](/administration/monitoring/bucket-notifications/#minio-bucket-notifications).