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② 後台搜尋「Themex Currency Manager for WooCommerce」→ 直接安裝（推薦）
原文外掛簡介
Themex Currency Manager lets customers view and switch currencies on your WooCommerce store.
Features
Admin settings: General, Location, Checkout, Design, Update
Unlimited currencies with manual or live exchange rates
Custom currency symbol, decimal, and thousand separators per currency
Optional exchange fee (fixed or percent)
Geolocation auto-detect (WooCommerce Geo API and external providers)
Approximate price auto-detect
Country-to-currency mapping
Floating currencies bar with custom colors, positions, and desktop collapse mode
Conditional tags for floating bar visibility
Single product page currency switcher (multiple positions)
AJAX currency switch with optional loading mask
WooCommerce price, cart, and variable product support
Checkout currency support
Fixed price per currency via product meta _themx_wcmc_price_{CODE}
Cache plugin support: WP Super Cache, W3 Total Cache, WP Rocket
Widget and shortcode [themx_currency_switcher]
External services
This plugin connects to third-party services to fetch live exchange rates and detect visitor location. Data is sent only when an administrator updates rates (manually or via scheduled tasks) or when geolocation is enabled.
Exchange rate APIs
When rates are updated, the plugin requests the latest rates for a base currency code from these providers (in order of fallback):
ExchangeRate-API — https://open.er-api.com/ (terms: https://www.exchangerate-api.com/terms, privacy: https://www.exchangerate-api.com/privacy)
Frankfurter — https://frankfurter.dev/ (terms and privacy: https://frankfurter.dev/)
fawazahmed0 currency API via jsDelivr — https://github.com/fawazahmed0/exchange-api (CDN: https://www.jsdelivr.com/terms/privacy-policy)
Only the base currency code is included in the request URL. No personal user data is sent to these services.
Geolocation API
When Geo API → External is enabled, the plugin may send the visitor’s IP address to:
ip-api.com — https://ip-api.com/ (terms: https://ip-api.com/docs/legal, privacy: https://ip-api.com/docs/legal)
The response country code is cached locally for up to 24 hours.
WooCommerce Geolocation
When Geo API → WooCommerce or MaxMind is selected, country detection uses WooCommerce’s built-in geolocation (see WooCommerce privacy policy).
Development
Source code: https://github.com/themexplosion
