Facilitator and Chains
The Dexter facilitator at https://x402.dexter.cash handles verification, fee sponsorship, and on-chain settlement for x402 payments across Solana and seven EVM chains.
This section owns settlement infrastructure truth:
- supported networks
- capability endpoints
- verification and settlement behavior
- partner integration assumptions
In This Section
Partner Quickstart
Fastest path for validating chain support and settlement.
Supported Networks
Full CAIP-2 network matrix with status and chain notes.
Solana
Primary SVM payment path with fee sponsorship.
Base
Default EVM path — lowest fees, strongest integration.
SKALE
Zero-gas EVM chain for high-frequency payments.
Polygon
EVM settlement on Polygon.
Arbitrum
EVM settlement on Arbitrum.
Optimism
EVM settlement on Optimism.
Avalanche
EVM settlement on Avalanche.
BNB Smart Chain
EVM settlement on BNB Smart Chain.
Sponsor Policy
Concrete policy rules: allowed programs, compute caps, asset allowlist, minimums.
Troubleshooting
Diagnose setup issues, policy rejections, and settlement failures.
GET /supported
Query the live capability matrix.
POST /verify
Validate payment payloads before settlement.
POST /settle
Submit payments for on-chain execution.
Supported chains
Every supported chain has its own page with CAIP-2 identifiers and validation guidance.
