WordPress & WooCommerce
The WordPress & WooCommerce plugin: one-click connect, WooCommerce events, back-in-stock button, identity verification.
Install the relaybell WordPress plugin and click Connect to relaybell on its settings page — one click links the site (no keys to copy; manual Project ID + API key entry is still under Advanced). It injects the SDK, serves its own service worker, and can auto-send a push when you publish (tick Send on publish on its settings page — it's off by default). With WooCommerce active (plugin 1.2.2 or newer — older versions sent no WooCommerce events because of a loading bug), it also fires purchase, cart.updated (logged-in shoppers), signup, checkout.started, order.refunded, back_in_stock and price_drop events automatically, adds a “Notify me when back in stock” button to sold-out products (on variable products it signs the shopper up for the size/colour they picked), and records product views for subscribers so price-drop alerts reach the right people.
Identity verification: plugin 1.2.4 or newer fetches your secret key, signs the user id of each logged-in visitor (userHash) and turns on Require verified User IDs for you. It picks up a new key within a day, or as soon as you open its settings page.