# ListSchemaVersions
<a name="API_ListSchemaVersions"></a>

Lists schema versions with the provided information.

## Request Syntax
<a name="API_ListSchemaVersions_RequestSyntax"></a>

```
GET /schema-versions/Type?MaxResults=MaxResults&NamespaceFilter=Namespace&NextToken=NextToken&SchemaIdFilter=SchemaId&SemanticVersionFilter=SemanticVersion&VisibilityFilter=Visibility HTTP/1.1
```

## URI Request Parameters
<a name="API_ListSchemaVersions_RequestParameters"></a>

The request uses the following URI parameters.

 ** [MaxResults](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-MaxResults"></a>
The maximum number of results to return at one time.  
Valid Range: Minimum value of 1. Maximum value of 1000.

 ** [Namespace](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-Namespace"></a>
Filter on the name of the schema version.  
Length Constraints: Minimum length of 3. Maximum length of 12.  
Pattern: `[a-z0-9]+` 

 ** [NextToken](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-NextToken"></a>
A token that can be used to retrieve the next set of results.  
Length Constraints: Minimum length of 1. Maximum length of 65535.  
Pattern: `[a-zA-Z0-9=_-]+` 

 ** [SchemaId](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-SchemaId"></a>
Filter on the id of the schema version.  
Length Constraints: Minimum length of 3. Maximum length of 128.  
Pattern: `[a-zA-Z0-9.]+` 

 ** [SemanticVersion](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-SemanticVersion"></a>
The schema version. If this is left blank, it defaults to the latest version.  
Length Constraints: Minimum length of 3. Maximum length of 12.  
Pattern: `(\d+\.\d+(\.\d+)?|\$latest)` 

 ** [Type](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-Type"></a>
Filter on the type of schema version.  
Valid Values: `capability | definition`   
Required: Yes

 ** [Visibility](#API_ListSchemaVersions_RequestSyntax) **   <a name="managedintegrations-ListSchemaVersions-request-uri-Visibility"></a>
The visibility of the schema version.  
Valid Values: `PUBLIC | PRIVATE` 

## Request Body
<a name="API_ListSchemaVersions_RequestBody"></a>

The request does not have a request body.

## Response Syntax
<a name="API_ListSchemaVersions_ResponseSyntax"></a>

```
HTTP/1.1 200
Content-type: application/json

{
   "Items": [ 
      { 
         "Description": "string",
         "Namespace": "string",
         "SchemaId": "string",
         "SemanticVersion": "string",
         "Type": "string",
         "Visibility": "string"
      }
   ],
   "NextToken": "string"
}
```

## Response Elements
<a name="API_ListSchemaVersions_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [Items](#API_ListSchemaVersions_ResponseSyntax) **   <a name="managedintegrations-ListSchemaVersions-response-Items"></a>
The list of schema versions.  
Type: Array of [SchemaVersionListItem](API_SchemaVersionListItem.md) objects

 ** [NextToken](#API_ListSchemaVersions_ResponseSyntax) **   <a name="managedintegrations-ListSchemaVersions-response-NextToken"></a>
A token that can be used to retrieve the next set of results.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 65535.  
Pattern: `[a-zA-Z0-9=_-]+` 

## Errors
<a name="API_ListSchemaVersions_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
User is not authorized.  
HTTP Status Code: 403

 ** ConflictException **   
There is a conflict with the request.  
HTTP Status Code: 409

 ** InternalServerException **   
Internal error from the service that indicates an unexpected error or that the service is unavailable.  
HTTP Status Code: 500

 ** ServiceUnavailableException **   
The service is temporarily unavailable.  
HTTP Status Code: 503

 ** ThrottlingException **   
The rate exceeds the limit.  
HTTP Status Code: 429

 ** ValidationException **   
A validation error occurred when performing the API request.  
HTTP Status Code: 400

## See Also
<a name="API_ListSchemaVersions_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/iot-managed-integrations-2025-03-03/ListSchemaVersions) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iot-managed-integrations-2025-03-03/ListSchemaVersions)