eCollege

Getting Started with the API for SIS
API Integration: Choosing Your Solution (.pdf)
API Integration: Set Up Asynchronous Integration (.pdf)
API Integration: Set Up Web Services (.pdf)
Annotated Guide to the IMS Specification (.pdf)
IMS Specification Quick Reference Guide (.pdf)

SDK
Compiled Reference Guide (.zip)
Uncompiled Reference Guide (.zip)
Compiled Developer's Guide (.zip)
Uncompiled Developer's Guide (.zip)