Institutional Tier-1 L1 · Gasless Ready

Ethereum Mainnet Payment Gateway — Institutional ERC-20 USDC, USDT, EURC & ETH

For high-ticket B2B invoices ($2,500–$500,000+), enterprise software contracts, and Safe multisig treasuries, Ethereum Mainnet remains the canonical institutional settlement layer — at a flat 0.5% XPayr fee vs 2.9%–3.9% wires/cards.

Open Free Ethereum Sepolia (11155111) Workspace 🧪 Interactive Checkout Sandbox ⚖️ Compare Gas & Finality 🌐 All 12 Networks
Chain ID / Scope1 (Mainnet) / 11155111 (Sepolia)
Confirmation SLA12–24 seconds (1–2 blocks)
Typical Network Gas~$0.40–$2.50 (network congestion dependent)
XPayr Split99.5% Merchant / 0.5% Fee

Ethereum Mainnet (ERC-20) Settlement Architecture

Complete Tier-1 Stablecoin Suite

Accept USDC, USDT, MiCA-regulated EURC, PayPal PYUSD, DAI, and native ETH directly into your Ethereum L1 Safe multisig.

Massive High-Ticket ROI

On a $50,000 B2B invoice, XPayr charges $250 (0.5%) settled in 24 seconds — saving $1,200+ compared with 2.9% credit cards or slow SWIFT wires.

Sepolia Testnet (11155111)

Industry-standard Ethereum Sepolia sandbox for smart-contract and ERP ledger integration testing.

Supported Wallets & Exchange QR Behavior

Wallets: Safe Multisig, Ledger, Trezor, Fireblocks/WalletConnect, MetaMask, Rabby
Supported by every regulated global exchange, custodian, and corporate multisig.

Best-Fit Merchant Verticals

Enterprise B2B invoicing (/invoices), annual SaaS contracts, institutional OTC/treasury flows, and TGE/Web3 ecosystems.

Supported Assets on Ethereum Mainnet (ERC-20)

Accept USDC → Accept USDT → Accept EURC → Accept PYUSD → Accept DAI → Accept ETH →

API v1 Session Payload (ethereum)

Pin preferred_network: "ethereum" or omit it so buyers can switch freely across your enabled chains.

POST https://xpayr.com/api/v1/payments
Authorization: Bearer sk_test_your_workspace_key
Content-Type: application/json

{
    "amount": "149.00",
    "currency": "USD",
    "preferred_network": "ethereum",
    "preferred_token": "USDC",
    "order_id": "ord_ethereum_9041",
    "underpayment_tolerance_pct": 1,
    "webhook_url": "https://merchant.example.com/webhooks/xpayr",
    "metadata": {
        "network": "ethereum",
        "settlement_split": "99.5_pct_merchant_wallet"
    }
}
⚙️ Generate Code in 8 Languages 🔔 Webhook Event Schemas

Explore All 12 Supported Blockchain Rails

Solana Base (Coinbase L2) Arbitrum One Polygon PoS OP Mainnet (Optimism) TRON (TRC-20) BNB Smart Chain (BEP-20) Avalanche C-Chain TON (The Open Network) Bitcoin (BTC) Circle Arc Network

Ethereum Mainnet (ERC-20) Checkout FAQ

When should we recommend Ethereum Mainnet vs Base or Arbitrum?

Enable Base, Arbitrum, Polygon, and Solana for everyday $5–$1,000 checkouts, and keep Ethereum Mainnet active for $1,000+ B2B invoices where corporate buyers hold funds in L1 Safe multisigs.