TransUnion API documentation
The TransUnion API documentation includes technical resources for TransUnion customers and vendors. The customers and vendors can access a comprehensive collection of documents. These documents include:
- Definition of codes that are used in TU4.0 and TU4.1 record processing, and include the following:
a. Address
b. Name
c. Industry
d. Permissible purpose
e. Remarks - Current and archived General Announcements that contain technical information about TransUnion’s services and compliance requirements
- Online batch users that include instructions and templates for running successful online batch (OLB) transactions
- Risk-based pricing rule that includes two solutions to help consumers understand their credit scores as compared with other U.S. consumers
- Score distribution graphs and score interval tables for generating credit score disclosure exception notices
- Score percentile ranking for generating credit score disclosure exception notices without maintaining multiple score distribution graphs
- Score models listed together with reason codes and a master reason code table
- Security freeze that uses instructions, type codes, and test subjects to work successfully with it.Technical specifications for recent service releases that include technical documentation for recently released online services and scoring models
- Test subjects that contain fictitious test subjects and can be used to test TransUnion services by sending a service inquiry in two ways:
a. Using a test subscriber code
b. Using a production subscriber code - TransUnion service descriptions arranged in a comprehensive listing, including service codes
- TransUnion Net Access Resources that contain guides and instructions in video and written format about the TransUnion Net Access (TUNA)
