Dexter
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Facilitator and Chains

GET /supported

Returns the current network and scheme support matrix. Use this instead of hardcoding chain assumptions.

curl -s https://x402.dexter.cash/supported | jq

Response

{
  "kinds": [
    {
      "x402Version": 2,
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "extra": {
        "feePayer": "SOLANA_FEE_PAYER"
      }
    },
    {
      "x402Version": 2,
      "scheme": "exact",
      "network": "eip155:8453",
      "extra": {}
    }
  ],
  "extensions": ["bazaar"],
  "signers": {
    "solana:*": ["SOLANA_FEE_PAYER"],
    "eip155:*": ["EVM_FEE_PAYER"],
    "*": ["SOLANA_FEE_PAYER", "EVM_FEE_PAYER"]
  }
}

Fields

FieldTypeDescription
kindsArrayEach entry is a supported network + scheme combination
kinds[].networkStringCAIP-2 network identifier
kinds[].schemeStringPayment scheme (currently exact for all)
kinds[].extra.feePayerStringFee sponsor address (Solana only)
extensionsArrayFacilitator-level features (bazaar for discovery)
signersObjectSigner classes per network family

Quick check for a specific chain

curl -s https://x402.dexter.cash/supported | jq '.kinds[] | select(.network == "eip155:8453")'

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