You can interact with Amazon S3 using SOAP 1.1 over HTTP. The Amazon S3 WSDL, which describes the Amazon S3 API in a machine-readable way, is available at: http://doc.s3.amazonaws.com/2006-03-01/AmazonS3.wsdl. The Amazon S3 schema is available at http://doc.s3.amazonaws.com/2006-03-01/AmazonS3.xsd.
Most users will interact with Amazon S3 using a SOAP toolkit tailored for their language and development environment. Different toolkits will expose the Amazon S3 API in different ways. Please refer to your specific toolkit documentation to understand how to use it. This section illustrates the Amazon S3 SOAP operations in a toolkit-independent way by exhibiting the XML requests and responses as they appear "on the wire."
You can send Amazon S3 SOAP messages to either a SSL secured or un-secured endpoint. Note that authenticated SOAP requests are only accepted over SSL. The available Amazon S3 SOAP endpoints are http://s3.amazonaws.com/soap and https://s3.amazonaws.com/soap (SSL).
You can include the following authorization-related elements with any SOAP request:
AWSAccessKeyId: The AWS Access Key ID of the requestor
Timestamp: The current time on your system
Signature: The signature for the request