Lyons Commercial Data is a provider of U.S. financial institution data including bank routing numbers and other information critical to transaction processing. The Lyons Routing Number Verification API provides real-time access to the iBankRegistry hosted in a secure and fully redundant data center. These services provide developers a link to vital transaction processing information. Applications accessing Lyons routing number Web Services utilize SOAP to process information requests to and from Lyons servers via https:// for SSL encryption. Responses are formatted in XML.