MetalflowAPI

MetalflowAPI is a free, open-source WordPress plugin designed to display live precious metals prices on WordPress sites. It enables users to embed up-to-date pricing information for gold, silver, platinum, and palladium directly into posts, pages, sidebars, or widget areas. The plugin is particularly tailored for jewelers, publishers, and bullion shops who require carat-aware pricing and support for over 30 currencies.

The plugin offers six distinct shortcodes, each addressing common use cases such as showing the live spot price for a specific metal, displaying carat-aware gold prices (covering 9k to 24k), presenting a metals ticker with 24-hour change, generating a full carat table, calculating percentage change over a set number of days, and providing an interactive carat-weight trade-in calculator. Four Gutenberg blocks are included for live price, carat calculator, ticker, and carat table, all of which are server-rendered and fully editable within the block editor. The plugin also features a classic sidebar widget for the metals ticker, compatible with any classic-widget-aware theme.

MetalflowAPI utilizes a REST proxy to ensure that API keys remain secure on the WordPress server and are never exposed to browsers. It incorporates server-side caching using WordPress transients, which enhances performance and ensures compatibility with popular caching plugins such as WP Rocket, W3 Total Cache, and LiteSpeed. The plugin is theme-aware, supporting both light and dark themes, and inherits site typography, with additional customization possible through CSS classes. pot file, and supports WordPress multisite installations, allowing each site to have its own API key and settings.

0 and is available as a free download. Users can sign up for a free MetalflowAPI account, which includes a free API tier allowing up to 100 requests per month. This allocation, combined with five-minute caching, is designed to meet the needs of most jewelry and bullion websites. 3.