Layer Crypto Checkout – Crypto Payments for WooCommerce

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.

Key Features

• Multi-Network Support – Accept payments on Ethereum, Base, Optimism, and Arbitrum
• ETH & USDC Payments – Customers can pay with native ETH or USDC stablecoin
• Non-Custodial – Payments go directly to your wallet. We never hold your funds
• Low Fees – Layer 2 networks offer transaction fees under $0.01
• On-Chain Verification – Every payment is verified on blockchain before order completion
• Real-Time Conversion – Automatic fiat to crypto conversion at checkout
• Test Mode – Test on testnets before going live with real payments

How It Works

1. Customer selects “Pay with Crypto” at checkout
2. Customer connects their MetaMask or WalletConnect wallet
3. Customer chooses network (Base, Optimism, Arbitrum, or Ethereum)
4. Customer chooses payment method (ETH or USDC)
5. Payment is sent directly to your wallet via smart contract
6. Order is completed after on-chain verification

Supported Networks

Mainnets (Live Payments):
* Ethereum Mainnet
* Base
* Optimism
* Arbitrum One

Testnets (Testing):
* Ethereum Sepolia
* Base Sepolia
* Optimism Sepolia
* Arbitrum Sepolia

Security

• Immutable Smart Contract – Contract code cannot be changed after deployment
• Reentrancy Protection – Built-in guard against reentrancy attacks (OpenZeppelin standard)
• Replay Attack Protection – Each payment is unique and cannot be reused
• Open Source & Verified – Contract source code is publicly verified on all block explorers

Platform Fee

A 1% platform fee is applied to each transaction to support ongoing development and maintenance.

External Services

This plugin connects to the following external services:

CoinGecko API

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

ExchangeRate-API

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

CryptoCompare API (Fallback)

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

Blockchain RPC Endpoints

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

WalletConnect

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