layercryptocheckout

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

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.

William Chong

kin ko

LikeCoin

FINAL LEGACY VERSION NOTICE
This is the final version of the Web3Press LikeCoin plugin before the transition to 3ook.com. Version 4.0.0 serves as a read-only legacy version.
CURRENT STATUS (v4.0.0): 
– Plugin is in read-only legacy mode 
– All NFT publishing and ISCN publishing functions have been removed 
– This is a maintenance version only – no new features will be added 
– Existing content display and management features remain functional
WHAT STILL WORKS (Legacy Features): 
– Display control for existing LikeCoin buttons and NFT widgets 
– Update ISCN ID and Arweave ID for existing posts 
– Assign Liker ID to site or post (legacy functionality) 
– Internet Archive integration 
– Payment pointer functionality
LEGACY MAINTENANCE: 
– All existing content and widgets remain fully functional 
– Portfolio access maintained at liker.land 
– Display settings and configurations preserved 
– No user action required for continued operation
<h4>About the Future 3ook.com Version</h4>
The next major release will be a new 3ook.com plugin with: 
– Book collection displays from 3ook.com 
– Book recommendation features 
– Enhanced discovery and community tools 
– Full EVM blockchain integration
<h4>Important Notes</h4>
<ul>
<li>This v4.0.0 is maintenance-only – no new blockchain publishing</li>
<li>Existing users can continue managing current content normally</li>
<li>Future 3ook.com features will be in a new major plugin version release</li>
<li>No migration action required from users at this time</li>
</ul>
<h3>Contribution</h3>
LikeCoin is an open-source project. You are welcome to contribute to the plugin on <a href="https://github.com/likecoin/likecoin-wordpress" rel="nofollow ugc">Github</a> if you are a developer.

Web3Press – Migrating to 3ook.com Decentralized Bookstore

FINAL LEGACY VERSION: Read-only maintenance version before 3ook.com transition. No new publishing features.

Layer Crypto Checkout – Crypto Payments for WooCommerce vs Web3Press – Migrating to 3ook.com Decentralized Bookstore