Important: We have updated the API domain names and IP addresses used for real-time integrations. Learn more.

Download reference and implementation information for Merchant Solutions APIs.

Order and payment API documents

• Getting started and reference manual (PDF format) (updated for October 3, 2013 API updates)
• Order API XSD (updated June 20, 2019)
• Payment API XSD (Bulk)  (updated June 20, 2019)
• Payment API XSD (Non-Bulk)  (updated June 20, 2019)

Catalog API documents (Beta)

• Getting started and reference manual (PDF format) (updated for January 10, 2013 enhancements)
• Catalog API XSD (updated for January 10, 2013 enhancements)

See Also:

• API domain names and IP addresses for real-time integrations
• Apply for an API Partner ID
• API and Real-Time Links Index