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SKALE

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SKALE
SKALE

Zero-gas EVM settlement for high-frequency x402 payments.

SKALE Europa is a zero-gas EVM chain, which makes it a natural fit for high-frequency, low-value x402 payments where traditional EVM gas costs would eat into margins.

Network Identifiers

NetworkCAIP-2 IdentifierStatus
SKALE Europaeip155:1187947933Production
SKALE Europa Sepoliaeip155:324705682Testnet

Why SKALE Matters for x402

On standard EVM chains, even though the payment is in USDC, the buyer or facilitator still pays gas. On SKALE, there's no gas cost at all — every transaction is free to execute. For x402 payments of a few cents, this eliminates the gas-to-payment ratio problem.

The facilitator handles SKALE the same way as other EVM chains: EIP-3009 transferWithAuthorization for USDC, with the standard verify/settle endpoint flow.

Validating Support

curl -s https://x402.dexter.cash/supported | jq '.kinds[] | select(.network == "eip155:1187947933")'

For Partners

  1. Confirm SKALE appears in the GET /supported response
  2. Test a payment through POST /verify
  3. Execute a real settlement through POST /settle

For Merchants

  1. Set network: "eip155:1187947933" in your x402 payment requirements
  2. The Dexter facilitator handles verification and settlement on SKALE Europa
  3. Buyers discover your endpoint through OpenDexter regardless of which chain you settle on

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