Supported Networks

The facilitator at https://x402.dexter.cash handles verification and settlement across Solana and six EVM chains. Use this table as the human-readable reference. For the live machine-facing contract, query GET /supported.

Network Matrix

Legacy v1 aliases (solana, base, polygon, etc.) still work for backward compatibility. Prefer CAIP-2 identifiers in new integrations.

Chain Notes

Solana is the primary payment path with full fee sponsorship. Most x402 traffic settles here. See the Solana chain page for SVM-specific details.

Base is the default EVM starting point. Lowest EVM fees, strongest Dexter integration coverage. See the Base chain page.

Polygon, Arbitrum, Optimism, Avalanche all follow the same EVM settlement path. The facilitator validates the transfer, confirms the recipient and amount match the payment requirements, and settles. No chain-specific configuration is needed beyond specifying the correct CAIP-2 identifier.

SKALE Europa is a zero-gas EVM chain, which makes it interesting for high-frequency low-value payments. See the SKALE chain page for positioning and partner guidance.

What the Facilitator Provides on Every Chain

• Verification of x402 payment payloads against requirements
• Fee sponsorship (Solana; EVM chains have native gas)
• On-chain settlement orchestration
• Extension support (bazaar discovery, sponsored access)
• Stable public endpoint at https://x402.dexter.cash

Validating Chain Support

curl -s https://x402.dexter.cash/supported | jq '.kinds[].network'

This returns the live list of supported network identifiers. Cross-reference with this table to confirm coverage.

Chain Pages