This is the best Community reference I've found on Workday APIs.

API Authentication Methods¶

This API Authentication Methods page has excellent examples for Workday API methods. It has:

• SOAP Authentication
  • Basic
  • SAML
  • X509
  • OAuth
• REST API Authentication
• RaaS API Authentication
• Listener Service and Message Queue APIs.

SOAP General Code Samples¶

Ever wanted to bring Workday SOAP data into an Excel report or use the Transaction Log to find Employee data changes? Check out SOAP General Code Samples

And more!¶

There's a bunch of other helpful consolidated API links like:

• SOAP API Troubleshooting and Guides
• REST API information and samples
• Workday API Headers
• API Decision Tree