EVM Rollup · Gasless Ready

Base Crypto Payment Gateway — Native USDC, EURC & Gasless Permit Checkout

Built on the OP Stack and backed by Coinbase ecosystem distribution, Base combines ~$0.004 L2 fees, native Circle USDC & EURC contracts, and ERC-2612 Gasless Permit checkout for global SaaS and AI agents.

Open Free Base Sepolia (84532) Workspace 🧪 Interactive Checkout Sandbox ⚖️ Compare Gas & Finality 🌐 All 12 Networks

Chain ID / Scope8453 (Mainnet) / 84532 (Base Sepolia)

Confirmation SLA~2 seconds

Typical Network Gas~$0.003–$0.006

XPayr Split99.5% Merchant / 0.5% Fee

Base (Coinbase L2) Settlement Architecture

ERC-2612 Gasless Permit Support

Sponsor buyer gas on eligible Base USDC/EURC checkouts (/gasless) so customers holding zero ETH on Base still convert in one signature.

Atomic 99.5% / 0.5% Contract Split

Web3 1-Click payments execute atomic on-chain settlement straight to your Base EOA or Safe multisig treasury.

EU MiCA EURC + USD USDC

Accept both USD-pegged USDC and Euro-pegged EURC on a single low-cost Layer-2 rollup.

Supported Wallets & Exchange QR Behavior

Wallets: Coinbase Smart Wallet, MetaMask, Rabby, Safe Multisig + Exchange QR
Zero-fee or near-zero USDC withdrawals from Coinbase and major CEXs settle directly into your Base EVM address.

Best-Fit Merchant Verticals

US/EU/UK B2B SaaS, AI agent x402 API paywalls, EU MiCA-aligned EURC billing, and Safe multisig corporate treasuries.

Supported Assets on Base (Coinbase L2)

Accept USDC → Accept EURC → Accept ETH → Accept BASE →

API v1 Session Payload (`base`)

Pin preferred_network: "base" 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": "base",
    "preferred_token": "USDC",
    "order_id": "ord_base_9041",
    "underpayment_tolerance_pct": 1,
    "webhook_url": "https://merchant.example.com/webhooks/xpayr",
    "metadata": {
        "network": "base",
        "settlement_split": "99.5_pct_merchant_wallet"
    }
}

⚙️ Generate Code in 8 Languages 🔔 Webhook Event Schemas

Explore All 12 Supported Blockchain Rails

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

Base (Coinbase L2) Checkout FAQ

Does XPayr support gasless USDC payments on Base?

Yes. Base native USDC supports EIP-2612 Permit signatures, allowing XPayr Gasless Permit Checkout (/gasless) to execute transfers even when the buyer holds zero ETH.

Can we settle Base payments directly into a Gnosis Safe multisig?

Yes. Any standard EVM EOA or Safe multisig deployed on Base Mainnet (Chain ID 8453) can be set as your non-custodial settlement destination.

What Testnet is used for Base integration QA?

XPayr uses Base Sepolia (Chain ID 84532) for sk_test_ checkout sessions and webhook verification.