# Code, guideline, and policy reference for developers (/api/codes/overview)



Use these reference pages to look up codes and review guidelines and policies that apply to your PayPal integration.

## Access SFTP files [#access-sftp-files]

To access your SFTP files, use the credentials provided in your PayPal account. For more information, see [Access SFTP files](/v5/reports/sftp).

## Regional codes [#regional-codes]

The PayPal REST APIs use various codes to identify countries, currencies, and other regional settings. Use the following reference pages to look up these codes when you specify them in API requests and account configurations.

### [Currency codes](/api/codes/currency)

Codes for currencies that PayPal supports. Use these codes when you specify currency in API requests and interpret currency fields in reports.

### [Country codes](/api/codes/country-region)

Codes for countries that PayPal supports. Use these codes when you specify country in API requests and account configurations.

### [Locale codes](/api/codes/locale)

Codes for locales that PayPal supports. Use these codes to configure language and regional display settings in your integration.

### [State codes](/api/codes/state-or-province)

Codes for states and provinces that PayPal supports. Use these codes when specifying regional subdivisions in API requests.

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