# DescribeServices


Returns the metadata for one service or a list of the metadata for all services. Use this without a service code to get the service codes for all services. Use it with a service code, such as `AmazonEC2`, to get information specific to that service, such as the attribute names available for that service. For example, some of the attribute names available for EC2 are `volumeType`, `maxIopsVolume`, `operation`, `locationType`, and `instanceCapacity10xlarge`.

## Request Syntax


```
{
   "FormatVersion": "string",
   "MaxResults": number,
   "NextToken": "string",
   "ServiceCode": "string"
}
```

## Request Parameters


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

The request accepts the following data in JSON format.

 ** [FormatVersion](#API_pricing_DescribeServices_RequestSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-request-FormatVersion"></a>
The format version that you want the response to be in.  
Valid values are: `aws_v1`   
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 32.  
Required: No

 ** [MaxResults](#API_pricing_DescribeServices_RequestSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-request-MaxResults"></a>
The maximum number of results that you want returned in the response.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.  
Required: No

 ** [NextToken](#API_pricing_DescribeServices_RequestSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-request-NextToken"></a>
The pagination token that indicates the next set of results that you want to retrieve.  
Type: String  
Required: No

 ** [ServiceCode](#API_pricing_DescribeServices_RequestSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-request-ServiceCode"></a>
The code for the service whose information you want to retrieve, such as `AmazonEC2`. You can use the `ServiceCode` to filter the results in a `GetProducts` call. To retrieve a list of all services, leave this blank.  
Type: String  
Required: No

## Response Syntax


```
{
   "FormatVersion": "string",
   "NextToken": "string",
   "Services": [ 
      { 
         "AttributeNames": [ "string" ],
         "ServiceCode": "string"
      }
   ]
}
```

## Response Elements


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

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

 ** [FormatVersion](#API_pricing_DescribeServices_ResponseSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-response-FormatVersion"></a>
The format version of the response. For example, `aws_v1`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 32.

 ** [NextToken](#API_pricing_DescribeServices_ResponseSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-response-NextToken"></a>
The pagination token for the next set of retrievable results.  
Type: String

 ** [Services](#API_pricing_DescribeServices_ResponseSyntax) **   <a name="awscostmanagement-pricing_DescribeServices-response-Services"></a>
The service metadata for the service or services in the response.  
Type: Array of [Service](API_pricing_Service.md) objects

## Errors


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

 ** AccessDeniedException **   
General authentication failure. The request wasn't signed correctly.  
HTTP Status Code: 400

 ** ExpiredNextTokenException **   
The pagination token expired. Try again without a pagination token.  
HTTP Status Code: 400

 ** InternalErrorException **   
An error on the server occurred during the processing of your request. Try again later.  
HTTP Status Code: 500

 ** InvalidNextTokenException **   
The pagination token is invalid. Try again without a pagination token.  
HTTP Status Code: 400

 ** InvalidParameterException **   
One or more parameters had an invalid value.  
HTTP Status Code: 400

 ** NotFoundException **   
The requested resource can't be found.  
HTTP Status Code: 400

 ** ThrottlingException **   
You've made too many requests exceeding service quotas.   
HTTP Status Code: 400

## Examples


### The following is a sample request and response of the GetService operation.


This example illustrates one usage of DescribeServices.

#### Sample Request


```
POST / HTTP/1.1
Host: api.pricing.<region>.<domain>
x-amz-Date: <Date>
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=contenttype;date;host;user-agent;x-amz-date;x-amz-target;x-amzn-requestid,Signature=<Signature>
User-Agent: <UserAgentString>
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive
X-Amz-Target: AWSPriceListService.DescribeServices
{
    "ServiceCode": "AmazonEC2",
    "FormatVersion": "aws_v1",
    "NextToken": null,
    "MaxResults": 1
}
```

#### Sample Response


```
HTTP/1.1 200 OK
x-amzn-RequestId: <RequestId>
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Date: <Date>
{
    "FormatVersion": "aws_v1",
    "NextToken": "abcdefg123",
    "Services": [
        {
            "AttributeNames": [
                "volumeType",
                "maxIopsvolume",
                "instanceCapacity10xlarge",
                "locationType",
                "operation"
            ],
            "ServiceCode": "AmazonEC2"
        }
    ]
}
```

## See Also


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/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/pricing-2017-10-15/DescribeServices) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/pricing-2017-10-15/DescribeServices)