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Reference Information Overview


This guide consolidates the standard code and value tables that requests and responses reference across the API. Readers can use it to look up a valid value for a field rather than searching for it inside a product guide:

  • Additional Amount Types: provides additional amount type codes for goods and services, charges and fees, and taxes.
  • AVS Codes: provides Address Verification Service response codes for different processors.
  • Country Codes: provides ISO standard country codes and the Delivery Address Verification postal system reliability categories.
  • Currency Codes: provides ISO standard currency codes and the number of decimal places for each currency.
  • Language Codes: provides ISO standard language codes.
  • State Codes: provides state, province, and territory codes for the United States and Canada.
  • Time Zones: provides the supported time zone values for the and API requests.

Last published: September 29, 2026