Supported Blockchains

TapRails selects high-performance blockchain networks to deliver sub-second, cost-effective NFC tap-to-pay experiences for merchants and customers.

Network Support Matrix

Blockchain	Status	Supported Tokens	Chain ID	Avg Settlement Time	Avg Gas Fee
Base Mainnet	Active	USDC	`8453`	~2 seconds	< $0.01
Base Sepolia (Testnet)	Sandbox	USDC (Testnet)	`84532`	~2 seconds	Free (Faucet)
Solana	Coming Soon	USDC, USDT	—	< 1 second	< $0.001

Supported Chain: TapRails currently supports Base for all live and sandbox payments. Solana support is coming soon.

TapRails leverages Base — Coinbase’s Ethereum Layer 2 — as our primary payment rail for point-of-sale transactions.

Transactions confirm on Base within ~2 seconds, providing the immediate feedback required for physical retail checkout.

Gas fees on Base average under $0.01 per transaction, making micro-transactions and everyday retail payments economically viable.

Full EVM compatibility supports smart contract session keys, ERC-20 approvals, and gasless transaction relaying.

Native interoperability with Coinbase Wallet, Onramp, and broader liquidity pools.