# ListSigningCertificates
<a name="API_ListSigningCertificates"></a>

Returns information about the signing certificates associated with the specified IAM user. If none exists, the operation returns an empty list.

Although each user is limited to a small number of signing certificates, you can still paginate the results using the `MaxItems` and `Marker` parameters.

If the `UserName` field is not specified, the user name is determined implicitly based on the AWS access key ID used to sign the request for this operation. This operation works for access keys under the AWS account. Consequently, you can use this operation to manage AWS account root user credentials even if the AWS account has no associated users.

## Request Parameters
<a name="API_ListSigningCertificates_RequestParameters"></a>

 For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

 ** Marker **   
Use this parameter only when paginating results and only after you receive a response indicating that the results are truncated. Set it to the value of the `Marker` element in the response that you received to indicate where the next call should start.  
Type: String  
Length Constraints: Minimum length of 1.  
Pattern: `[\u0020-\u00FF]+`   
Required: No

 ** MaxItems **   
Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the `IsTruncated` response element is `true`.  
If you do not include this parameter, the number of items defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that case, the `IsTruncated` response element returns `true`, and `Marker` contains a value to include in the subsequent call that tells the service where to continue from.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 1000.  
Required: No

 ** UserName **   
The name of the IAM user whose signing certificates you want to examine.  
This parameter allows (through its [regex pattern](http://wikipedia.org/wiki/regex)) a string of characters consisting of upper and lowercase alphanumeric characters with no spaces. You can also include any of the following characters: \$1\$1=,.@-  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[\w+=,.@-]+`   
Required: No

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

The following elements are returned by the service.

 **Certificates.member.N**   
A list of the user's signing certificate information.  
Type: Array of [SigningCertificate](API_SigningCertificate.md) objects

 ** IsTruncated **   
A flag that indicates whether there are more items to return. If your results were truncated, you can make a subsequent pagination request using the `Marker` request parameter to retrieve more items. Note that IAM might return fewer than the `MaxItems` number of results even when there are more results available. We recommend that you check `IsTruncated` after every call to ensure that you receive all your results.  
Type: Boolean

 ** Marker **   
When `IsTruncated` is `true`, this element is present and contains the value to use for the `Marker` parameter in a subsequent pagination request.  
Type: String

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

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

 ** NoSuchEntity **   
The request was rejected because it referenced a resource entity that does not exist. The error message describes the resource.  
HTTP Status Code: 404

 ** ServiceFailure **   
The request processing has failed because of an unknown error, exception or failure.  
HTTP Status Code: 500

## Examples
<a name="API_ListSigningCertificates_Examples"></a>

### Example
<a name="API_ListSigningCertificates_Example_1"></a>

This example illustrates one usage of ListSigningCertificates.

#### Sample Request
<a name="API_ListSigningCertificates_Example_1_Request"></a>

```
https://iam.amazonaws.com/?Action=ListSigningCertificates
&UserName=Bob
&Version=2010-05-08
&AUTHPARAMS
```

#### Sample Response
<a name="API_ListSigningCertificates_Example_1_Response"></a>

```
<ListSigningCertificatesResponse>
  <ListSigningCertificatesResult>
    <UserName>Bob</UserName>
    <Certificates>
       <member>
          <UserName>Bob</UserName>
          <CertificateId>TA7SMEXAMPLEZ26OBPJE7EXAMPLE</CertificateId>
          <CertificateBody>
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
          </CertificateBody>
          <Status>Active</Status>
       </member>
    </Certificates>
    <IsTruncated>false</IsTruncated>
 </ListSigningCertificatesResult>
 <ResponseMetadata>
    <RequestId>7a62c49f-347e-4fc4-9331-6e8eEXAMPLE</RequestId>
 </ResponseMetadata>
</ListSigningCertificatesResponse>
```

## See Also
<a name="API_ListSigningCertificates_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/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/iam-2010-05-08/ListSigningCertificates) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListSigningCertificates)