Title: Bitcoin Lightning Payment Gateway for WooCommerce (via CLINK) Author: WooClink Published: July 7, 2026 Last modified: July 7, 2026 --- Search plugins ![](https://ps.w.org/clink-gateway-for-woocommerce/assets/banner-772x250.png?rev =3599258) ![](https://ps.w.org/clink-gateway-for-woocommerce/assets/icon-256x256.png?rev=3599262) # Bitcoin Lightning Payment Gateway for WooCommerce (via CLINK) By [WooClink](https://profiles.wordpress.org/wooclink/) [Download](https://downloads.wordpress.org/plugin/clink-gateway-for-woocommerce.zip) * [Details](https://wordpress.org/plugins/clink-gateway-for-woocommerce/#description) * [Reviews](https://wordpress.org/plugins/clink-gateway-for-woocommerce/#reviews) * [Installation](https://wordpress.org/plugins/clink-gateway-for-woocommerce/#installation) * [Development](https://wordpress.org/plugins/clink-gateway-for-woocommerce/#developers) [Support](https://wordpress.org/support/plugin/clink-gateway-for-woocommerce/) ## Description Accept **Bitcoin Lightning Network** payments on your WooCommerce store via the ** CLINK protocol**. No web server required for your Lightning node — all communication flows over Nostr relays. Customers can pay with **ShockWallet**, **ZEUS**, **Amethyst**, or any CLINK-compatible Lightning wallet. #### How It Works 1. **Merchant** generates a CLINK Offer string (`noffer1...`) from their CLINK-compatible wallet 2. **Customer** checks out and selects “Lightning (CLINK)” as payment method 3. The plugin uses the noffer to request a BOLT 11 Lightning invoice over Nostr 4. Customer scans the QR code and pays with any Lightning wallet 5. Payment is confirmed via CLINK receipt — order is marked complete #### Features * Supports simple, variable, digital, and subscription products * Works with both classic checkout and WooCommerce Cart/Checkout Blocks * Live BTC price via CoinGecko (5-minute cache) or optional fixed rate * Display prices in sats, BTC, or ₿ (bip-0177) on product pages, cart, and checkout * Configurable invoice timeout and poll interval * Automatic sats conversion from your store currency * QR code display on the order-received page * Full refund support (manual Lightning refund) * Compatible with Custom Price for WooCommerce Pro and other price-display plugins * Client-side price conversion fallback for maximum plugin compatibility ### Third Party Services This plugin communicates with the following third-party services: #### Nostr Relays (CLINK Protocol) * **Purpose**: Request and receive Lightning invoices from the merchant’s CLINK- compatible wallet * **When**: At checkout, when a customer places an order using the CLINK payment method * **Data sent**: Merchant’s noffer offer data, payment amount in satoshis, order description, and ephemeral public keys * **Relay URL**: Determined by the merchant’s noffer string (configured in the gateway settings) * **Privacy note**: No personal customer data (name, email, address) is transmitted to Nostr relays. Only the payment amount and a short order description are shared. Customers choosing wallet-based auto-renewal (ndebit) authorize the merchant to pull future subscription payments; the ndebit string and subscription amount are known to the Nostr relay. #### CoinGecko * **Purpose**: Fetch the current BTC-to-fiat exchange rate for price display * **When**: On checkout page load, every 5 minutes (result is cached in WordPress transients) * **Data sent**: The store’s currency code (e.g., `usd`, `eur`) * **Privacy policy**: https://www.coingecko.com/en/privacy * **Note**: If configured, a fixed exchange rate in the plugin settings bypasses this service entirely. #### ShockWallet.app * **Purpose**: Informational links for customers to generate CLINK noffer/ndebit strings * **When**: When the customer clicks the link (no data sent by the plugin automatically) * **Privacy policy**: https://docs.shock.network/privacy ### Development Source code for the built JavaScript bundles is included in the plugin: * `assets/js/clink-checkout.js` — source for the order-received page bundle * `assets/js/clink-blocks.js` — source for the blocks checkout registration * `assets/js/clink-price-converter.js` — source for the client-side price conversion fallback * `build.mjs` — esbuild configuration * `package.json` — npm dependencies ## Screenshots [⌊Bitcoin Lightning Payment method at checkout via CLINK protocol⌉⌊Bitcoin Lightning Payment method at checkout via CLINK protocol⌉[ Bitcoin Lightning Payment method at checkout via CLINK protocol [⌊QR code on order-received page. Customer pay the first instalment immediately⌉⌊ QR code on order-received page. Customer pay the first instalment immediately⌉[ QR code on order-received page. Customer pay the first instalment immediately [⌊After fist invoice is paid, Customer can activate Auto-Renewal pasting nDebit string from any CLINK-enabled bitcoin lightning wallet⌉⌊After fist invoice is paid, Customer can activate Auto-Renewal pasting nDebit string from any CLINK-enabled bitcoin lightning wallet⌉[ After fist invoice is paid, Customer can activate Auto-Renewal pasting nDebit string from any CLINK-enabled bitcoin lightning wallet [⌊Customer paste nDebit string and interface display Coinfirmation of Auto-Renewal activation for future payments⌉⌊Customer paste nDebit string and interface display Coinfirmation of Auto-Renewal activation for future payments⌉[ Customer paste nDebit string and interface display Coinfirmation of Auto-Renewal activation for future payments [⌊When Auto-Renewal is activated, the customer has the option to pay next instalment invoice anytime⌉⌊When Auto-Renewal is activated, the customer has the option to pay next instalment invoice anytime⌉[ When Auto-Renewal is activated, the customer has the option to pay next instalment invoice anytime [⌊Bitcoin Lightning payment Gateway (via CLINK) in WooCommerce > Settings page⌉⌊ Bitcoin Lightning payment Gateway (via CLINK) in WooCommerce > Settings page⌉[ Bitcoin Lightning payment Gateway (via CLINK) in WooCommerce > Settings page ## Installation 1. Download the plugin `.zip` from WordPress.org 2. Go to **Plugins > Add New > Upload Plugin** 3. Upload the `.zip` and activate 4. Go to **WooCommerce > Settings > Payments > CLINK (Lightning)** 5. Enable the gateway and paste your `noffer1...` string 6. Save changes ## FAQ ### What is a “noffer”? A noffer is a CLINK Offer string (`noffer1...`) that advertises your Lightning node’s ability to receive payments. Generate one from ShockWallet, Lightning.Pub, or any CLINK-compatible wallet. ### Which wallets can customers use? Any CLINK-compatible Lightning wallet: **ShockWallet**, **ZEUS**, **Amethyst**, and others. ### Does this need a Lightning node on my server? No. All communication flows over Nostr relays. Your Lightning node only needs a Nostr connection. ### Are subscriptions supported? Yes. Subscriptions work with WooCommerce Subscriptions, Subscriptions for WooCommerce, YITH WooCommerce Subscription, Flexible Subscriptions, and others. After the first payment, customers can authorize auto-renewal via CLINK ndebit — future payments are processed automatically without scanning QR codes. ### How is the BTC price determined? The plugin fetches the live BTC price from CoinGecko with a 5-minute cache. You can optionally set a fixed rate in the settings. ### Does this plugin work with Custom Price for WooCommerce Pro? Yes. The plugin uses PHP_INT_MAX priority for all price filters and includes a client- side JavaScript fallback that converts prices in the browser, ensuring compatibility with Custom Price for WooCommerce Pro and similar price-display plugins. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Bitcoin Lightning Payment Gateway for WooCommerce (via CLINK)” is open source software. The following people have contributed to this plugin. Contributors * [ WooClink ](https://profiles.wordpress.org/wooclink/) [Translate “Bitcoin Lightning Payment Gateway for WooCommerce (via CLINK)” into your language.](https://translate.wordpress.org/projects/wp-plugins/clink-gateway-for-woocommerce) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/clink-gateway-for-woocommerce/), check out the [SVN repository](https://plugins.svn.wordpress.org/clink-gateway-for-woocommerce/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/clink-gateway-for-woocommerce/) by [RSS](https://plugins.trac.wordpress.org/log/clink-gateway-for-woocommerce/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.7 * Stripped remote gist.github.com URL from built JavaScript bundle (WordPress.org review compliance) * Fixed contributors list to match plugin owner’s WordPress.org username * Added Third Party Services section documenting Nostr relays, CoinGecko, and ShockWallet. app * “Payment:” row on View Subscription page shows “Auto-Renewal” (ndebit saved) or “Activate Auto-Renewal” link pointing to the parent order’s order-received page for ndebit setup #### 1.0.6 * Subscription “Payment:” row now shows “Via Auto-Renewal” or “Via Manual Renewal” based on ndebit status * Added “Activate Auto-Renewal” action link on My Account subscription items for subscriptions without ndebit * Added “Get your nDebit string” link pointing to my.shockwallet.app/lapps at checkout and on My Account * QR codes now generated client-side with bundled qrcode-generator library (no remote API dependency) * Fixed “Auto-Renewal” title changed to “Setup Auto-Renewal” on the order-received page #### 1.0.5 * Added ndebit auto-renewal for subscriptions — customers authorize recurring payments via CLINK * Auto-renewal is active by default after first subscription payment; titled “Setup Auto-Renewal” on the order-received page * Customers can disable auto-renewal from My Account > Subscriptions * Added “Get your nDebit string” link at checkout and on My Account subscription items pointing to https://my.shockwallet.app/lapps * QR codes are now generated client-side using the bundled qrcode-generator library( no remote API dependency) * Added BTC / sats / ₿ (bip-0177) currency display option — overrides all frontend prices * Price display runs at PHP_INT_MAX priority to avoid conflicts with other plugins * Added client-side price conversion fallback for maximum compatibility with Custom Price for WooCommerce Pro and similar plugins * Fixed BTC/bip-0177 price formatting — now correctly shows 8 decimal places * Compatibility improvements for third-party subscription plugins * Fixed PCP warnings (text domain, non-prefixed hook ignore) #### 1.0.4 * Removed redundant Store Currency setting (uses WooCommerce default) * External links in description now open in new tabs with rel=”noopener noreferrer” * Fixed blocks checkout description rendering (HTML no longer escaped) * Fixed blocks checkout icon (was passing HTML instead of URL) * Added loading=”lazy” to gateway icon * Updated repo and author URLs #### 1.0.3 * Fixed blocks checkout support with dedicated JS bundle * Fixed WPCS violations from audit * Added SCRIPT_DEBUG conditional for .min suffix * Added subscriptions support #### 1.0.2 * Improved error handling and logging * Better mobile QR code layout #### 1.0.1 * Fixed classic checkout redirect flow * Added i18n support #### 1.0.0 * Initial release ## Meta * Version **1.0.7** * Last updated **12 hours ago** * Active installations **Fewer than 10** * WordPress version ** 5.8 or higher ** * Tested up to **7.0** * PHP version ** 7.4 or higher ** * Tags * [bitcoin](https://wordpress.org/plugins/tags/bitcoin/)[Lightning](https://wordpress.org/plugins/tags/lightning/) [nostr](https://wordpress.org/plugins/tags/nostr/)[woocommerce](https://wordpress.org/plugins/tags/woocommerce/) * [Advanced View](https://wordpress.org/plugins/clink-gateway-for-woocommerce/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/clink-gateway-for-woocommerce/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/clink-gateway-for-woocommerce/reviews/) ## Contributors * [ WooClink ](https://profiles.wordpress.org/wooclink/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/clink-gateway-for-woocommerce/) ## Donate Would you like to support the advancement of this plugin? [ Donate to this plugin ](https://woo-clink.wasmer.app/product/donate/)