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
ISOstandard 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.
- Currency Codes for : provides the currency codes each acquirer accepts on .
- 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.
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Last published: September 29, 2026