layercryptocheckout

<p>Layer Crypto Checkout enables WooCommerce stores to accept cryptocurrency payments through MetaMask or WalletConnect. Payments are processed on Layer 2 networks for minimal transaction fees.</p>
<h4>Key Features</h4>
<ul>
<li><strong>Multi-Network Support</strong> – Accept payments on Ethereum, Base, Optimism, and Arbitrum</li>
<li><strong>ETH & USDC Payments</strong> – Customers can pay with native ETH or USDC stablecoin</li>
<li><strong>Non-Custodial</strong> – Payments go directly to your wallet. We never hold your funds</li>
<li><strong>Low Fees</strong> – Layer 2 networks offer transaction fees under $0.01</li>
<li><strong>On-Chain Verification</strong> – Every payment is verified on blockchain before order completion</li>
<li><strong>Real-Time Conversion</strong> – Automatic fiat to crypto conversion at checkout</li>
<li><strong>Test Mode</strong> – Test on testnets before going live with real payments</li>
</ul>
<h4>How It Works</h4>
<ol>
<li>Customer selects “Pay with Crypto” at checkout</li>
<li>Customer connects their MetaMask or WalletConnect wallet</li>
<li>Customer chooses network (Base, Optimism, Arbitrum, or Ethereum)</li>
<li>Customer chooses payment method (ETH or USDC)</li>
<li>Payment is sent directly to your wallet via smart contract</li>
<li>Order is completed after on-chain verification</li>
</ol>
<h4>Supported Networks</h4>
<p><strong>Mainnets (Live Payments):</strong><br />
* Ethereum Mainnet<br />
* Base<br />
* Optimism<br />
* Arbitrum One</p>
<p><strong>Testnets (Testing):</strong><br />
* Ethereum Sepolia<br />
* Base Sepolia<br />
* Optimism Sepolia<br />
* Arbitrum Sepolia</p>
<h4>Security</h4>
<ul>
<li><strong>Immutable Smart Contract</strong> – Contract code cannot be changed after deployment</li>
<li><strong>Reentrancy Protection</strong> – Built-in guard against reentrancy attacks (OpenZeppelin standard)</li>
<li><strong>Replay Attack Protection</strong> – Each payment is unique and cannot be reused</li>
<li><strong>Open Source & Verified</strong> – Contract source code is publicly verified on all block explorers</li>
</ul>
<h4>Platform Fee</h4>
<p>A 1% platform fee is applied to each transaction to support ongoing development and maintenance.</p>
<h3>External Services</h3>
<p>This plugin connects to the following external services:</p>
<h4>CoinGecko API</h4>
<p>Used to fetch real-time cryptocurrency prices for ETH and USDC conversion.<br />
– Data sent: Currency code (EUR, USD, GBP, etc.)<br />
– When: During checkout to calculate crypto amount<br />
– Service: https://www.coingecko.com<br />
– Terms: https://www.coingecko.com/en/terms<br />
– Privacy: https://www.coingecko.com/en/privacy</p>
<h4>ExchangeRate-API</h4>
<p>Used to fetch fiat currency exchange rates for USDC payments.<br />
– Data sent: Base currency code<br />
– When: During checkout for non-USD currencies<br />
– Service: https://www.exchangerate-api.com<br />
– Terms: https://www.exchangerate-api.com/terms<br />
– Privacy: https://www.exchangerate-api.com/terms</p>
<h4>CryptoCompare API (Fallback)</h4>
<p>Used as fallback when CoinGecko is unavailable.<br />
– Data sent: Currency code<br />
– When: Only if primary price API fails<br />
– Service: https://www.cryptocompare.com<br />
– Terms: https://www.cryptocompare.com/terms-conditions<br />
– Privacy: https://www.cryptocompare.com/privacy-policy</p>
<h4>Blockchain RPC Endpoints</h4>
<p>Used to verify on-chain transactions and read smart contract data.<br />
– Data sent: Transaction hashes, smart contract read calls (no personal data)<br />
– When: After payment submission to verify transaction on blockchain</p>
<p>The plugin uses the following public RPC providers:</p>
<p><strong>PublicNode</strong> (Ethereum Sepolia Testnet)<br />
– URL: ethereum-sepolia-rpc.publicnode.com<br />
– Service: https://www.publicnode.com<br />
– Terms: https://www.publicnode.com/terms<br />
– Privacy: https://www.publicnode.com/privacy</p>
<p><strong>LlamaNodes</strong> (Ethereum Mainnet)<br />
– URL: eth.llamarpc.com<br />
– Service: https://llamarpc.com<br />
– Terms: https://llamarpc.com/terms<br />
– Privacy: https://llamarpc.com/privacy</p>
<p><strong>Base Network</strong> (Coinbase L2)<br />
– URLs: mainnet.base.org, sepolia.base.org<br />
– Service: https://base.org<br />
– Terms: https://base.org/terms-of-service<br />
– Privacy: https://base.org/privacy-policy</p>
<p><strong>Optimism Network</strong><br />
– URLs: mainnet.optimism.io, sepolia.optimism.io<br />
– Service: https://optimism.io<br />
– Terms: https://optimism.io/terms<br />
– Privacy: https://optimism.io/privacy</p>
<p><strong>Arbitrum Network</strong><br />
– URLs: arb1.arbitrum.io, sepolia-rollup.arbitrum.io<br />
– Service: https://arbitrum.io<br />
– Terms: https://arbitrum.io/tos<br />
– Privacy: https://arbitrum.io/privacy</p>
<h4>WalletConnect</h4>
<p>Optional wallet connection service for connecting crypto wallets.<br />
– Data sent: Connection requests, transaction signing requests<br />
– When: When customer chooses WalletConnect option<br />
– Service: https://walletconnect.com<br />
– Terms: https://walletconnect.com/terms<br />
– Privacy: https://walletconnect.com/privacy</p>


Layer Crypto Checkout – Crypto Payments for WooCommerce

Accept ETH and USDC payments via MetaMask or WalletConnect on Layer 2 networks (Base, Optimism, Arbitrum) with low fees.

Freemius

ethereumicoio

lynn999

<p>The EthPress Web3 Login WordPress Plugin adds a capability to connect with cryptocurrency wallets such as <a href="https://metamask.io" rel="nofollow ugc">MetaMask</a> for Ethereum, Binance Smart Chain (BSC), Polygon (MATIC) or any other EVM-compatible blockchain, and wallets that support <a href="https://walletconnect.com/" rel="nofollow ugc">WalletConnect</a> QR code. Adds a button to WordPress login screen that will let users securely log in with their crypto wallet.</p>
<p><span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/0a8lWF6uHPA?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>
<p>Add the capability to log in with cryptocurrency wallets such as <a href="https://metamask.io" rel="nofollow ugc">MetaMask</a> for Ethereum, and wallets that support WalletConnect QR code. Adds a button to WordPress login screen that will let users securely log in with their crypto wallet.</p>
<p>In the background, a regular WordPress user account is created, so existing plugins and customizations will have no problem working along.</p>
<blockquote>
<p>The <a href="https://ethereumico.io/product/nft-authentication-nft-access-control-wordpress-plugin/" rel="nofollow ugc">EthPress NFT Access Add-On</a> can be used to control access for <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> products, simple pages and posts.</p>
</blockquote>
<h3>Features</h3>
<ul>
<li>A web3 login button is added to your login screen automatically</li>
<li>Use the EthPress widget for maximum ease</li>
<li>A shortcode [ethpress_login_button] can be used to display the Login button anywhere</li>
<li>A shortcode [ethpress_link_button] can be used to display the Link accounts button anywhere. The new account linked address will be put in all HTML elements with the <code>ethpress-address-changed</code> class present.</li>
<li>Local signature verification. To verify signatures locally with JavaScript, see this <a href="https://gitlab.com/losnappas/verify-eth-signature" rel="nofollow ugc">guide</a> please.</li>
</ul>
<h3>Features PRO</h3>
<blockquote>
<p>The <a href="https://ethereumico.io/product/web3-login-wordpress-ethpress-plugin/" rel="nofollow ugc">EthPress PRO</a> version is required to use these features. <a href="https://checkout.freemius.com/mode/dialog/plugin/9248/plan/15558/?trial=paid" rel="nofollow ugc">Free 7 days Trial</a> is available!</p>
</blockquote>
<ul>
<li>Managed Verification Service. </li>
<li>EthPress login button on a <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> Login, Register and Checkout Forms.</li>
<li>The [ethpress_account] short code can be used to display the current user’s address logged with.</li>
<li>Buttons labels text can be changed in plugin settings</li>
<li>WooCommerce Account Details show Link Wallet button setting</li>
<li>The <code>Redirect URL</code> setting can be used to set an URL of a page to redirect after a successful login</li>
<li>The <code>login_button_label</code> attribute can be used to change the label for the login button displayed with a <code>[ethpress_login_button]</code> shortcode</li>
</ul>
<blockquote>
<p>The <a href="https://ethereumico.io/product/nft-wordpress-plugin/" rel="nofollow ugc">NFT</a> Token based access control for the <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> products, simple pages and posts can be done with the <a href="https://ethereumico.io/product/nft-authentication-nft-access-control-wordpress-plugin/" rel="nofollow ugc">EthPress NFT Access Add-On</a>. <a href="https://checkout.freemius.com/mode/dialog/plugin/10731/plan/18172/?trial=paid" rel="nofollow ugc">Free 7 days Trial</a> is available!</p>
</blockquote>
<h4>Integrations</h4>
<ul>
<li>The <a href="https://wordpress.org/plugins/ultimate-member/" rel="ugc">Ultimate Member</a> plugin is supported</li>
</ul>
<h3>EthPress NFT Access Add-On Features</h3>
<p>Check user NFT authentication control (non-fungible token, erc-721 and erc-1155) ownership.<br />
The <a href="https://ethereumico.io/product/nft-authentication-nft-access-control-wordpress-plugin/" rel="nofollow ugc">EthPress NFT Access Add-On</a> is perfect for blocking users access to a Page, a Post and a <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> Product page, if they don’t own a certain NFT token.</p>
<blockquote>
<p>Free 7 days <a href="https://checkout.freemius.com/mode/dialog/plugin/10731/plan/18172/?trial=paid" rel="nofollow ugc">Trial</a> is available</p>
</blockquote>
<ul>
<li>Site wide NFT verification requirement to register or login</li>
<li>Restrict access to a <code>Page</code> to some NFT token owners only</li>
<li>Restrict access to a <code>Post</code> to some NFT token owners only</li>
<li>Restrict access to a <a href="https://woocommerce.com/?aff=12943&cid=17113767" rel="nofollow ugc">WooCommerce</a> <code>Product</code> to some NFT token owners only</li>
<li>Shortcode to display your access level: [ethpress_nft_access_addon_nft product_id=”1337″]</li>
<li><code>ERC721</code> and <code>ERC1155</code> non-fungible token standards are supported</li>
</ul>
<h4>Integrations</h4>
<ul>
<li><a href="https://wordpress.org/plugins/learnpress/" rel="ugc">LearnPress LMS</a> courses access can be granted with NFT token</li>
<li><a href="https://wordpress.org/plugins/tutor/" rel="ugc">Tutor LMS</a> courses access can be granted with NFT token</li>
<li><a href="https://wordpress.org/plugins/ethereum-wallet/" rel="ugc">Ethereum Wallet</a> plugin generated accounts are also tested</li>
<li>
<p>The <code>ethpress_nft_access_get_user_accounts</code> filter can be used to add wallets for testing:</p>
<pre><code>add_filter('ethpress_nft_access_get_user_accounts', function($accounts) {
    $more_accounts = get_more_accounts();
    return array_merge($accounts, $more_accounts);
});
</code></pre>
</li>
</ul>
<h3>Disclaimer</h3>
<p><strong>By using this free plugin you accept all responsibility for handling the account balances for all your users.</strong></p>
<p>Under no circumstances is <strong>ethereumico.io</strong> or any of its affiliates responsible for any damages incurred by the use of this plugin.</p>
<p>Every effort has been made to harden the security of this plugin, but its safe operation depends on your site being secure overall. You, the site administrator, must take all necessary precautions to secure your WordPress installation before you connect it to any live wallets.</p>
<p>You are strongly advised to take the following actions (at a minimum):</p>
<ul>
<li><a href="https://en.bitcoin.it/wiki/Cold_storage" rel="nofollow ugc">Educate yourself about cold and hot cryptocurrency storage</a></li>
<li>Obtain hardware wallet to store your coins</li>
<li><a href="https://codex.wordpress.org/Hardening_WordPress" rel="nofollow ugc">Educate yourself about hardening WordPress security</a></li>
<li><a href="https://jetpack.com/pricing/?aff=9181&cid=886903" rel="nofollow ugc">Install a security plugin such as Jetpack</a> or any other security plugin</li>
<li><strong>Enable SSL on your site</strong> if you have not already done so.</li>
</ul>
<blockquote>
<p>By continuing to use the EthPress plugin, you indicate that you have understood and agreed to this disclaimer.</p>
</blockquote>
<h3>Hooks</h3>
<p>These hooks can be used to add your custom logic after user logged in or linked an account using the EthPress plugin functionality.</p>
<p>The <code>login_redirect</code> hook is a <a href="https://developer.wordpress.org/reference/hooks/login_redirect/" rel="nofollow ugc">standard WordPress hook</a> you can use to customize the page user should be redirected after login.</p>
<blockquote>
<p>The <a href="https://ethereumico.io/product/web3-login-wordpress-ethpress-plugin/" rel="nofollow ugc">EthPress PRO</a> version has a feature to configure it on the plugin settings page. <a href="https://checkout.freemius.com/mode/dialog/plugin/9248/plan/15558/?trial=paid" rel="nofollow ugc">Free 7 days Trial</a> is available!</p>
</blockquote>
<pre><code>/**
 * Fires after every login attempt.
 *
 * @param WP_User|WP_Error $user WP_User on success, WP_Error on failure.
 * @param (string|false) $provider One of 'metamask', 'walletconnect', false.
 */
do_action( 'ethpress_login', $user, $provider );

/**
 * Fires after every user account linking success.
 *
 * @param WP_User|WP_Error $user WP_User on success, WP_Error on failure.
 * @param (string|false) $provider One of 'metamask', 'walletconnect', false.
 */
do_action( 'ethpress_linked', $user, $provider );

/**
 * Filters the login redirect URL.
 *
 * @param string           $redirect_to           The redirect destination URL.
 * @param string           $requested_redirect_to The requested redirect destination URL passed as a parameter.
 * @param WP_User|WP_Error $user                  WP_User object if login was successful, WP_Error object otherwise.
 */
$redirect_to = apply_filters( 'login_redirect', $redirect_to, $requested_redirect_to, $user );

/**
 * For additional checks in addons
 *
 * @since 1.6.0
 *
 * @param \losnappas\Ethpress\Address $address.
 * @return \losnappas\Ethpress\Address|\WP_Error Return \WP_Error if address doesn't fulfill some condition.
 */
$address = apply_filters('ethpress_login_address', $address);

/**
 * For additional checks in addons
 *
 * @since 1.6.0
 *
 * @param string           $redirect_to           The redirect destination URL.
 * @param string           $requested_redirect_to The requested redirect destination URL passed as a parameter.
 * @param WP_User|WP_Error $user                  WP_User object if login was successful, WP_Error object otherwise.
 */
$redirect_to = apply_filters('ethpress_login_redirect', $redirect_to, $requested_redirect_to, $user);
</code></pre>


EthPress – Web3 Login

EthPress Web3 Login Wordpress Plugin adds the capability to connect with cryptocurrency wallets such as MetaMask or WalletConnect QR code.

Layer Crypto Checkout – Crypto Payments for WooCommerce vs EthPress – Web3 Login