CrossChainPaymentToken

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://opensea.io/schemas/CrossChainPaymentToken",
  "title": "CrossChainPaymentToken",
  "type": "object",
  "description": "Payment token to use for cross-chain fulfillment",
  "properties": {
    "chain": {
      "type": "string",
      "description": "Chain of the payment token (e.g. 'base', 'ethereum')",
      "example": "base"
    },
    "token_address": {
      "type": "string",
      "description": "Contract address of the payment token (use 0x0000000000000000000000000000000000000000 for native token)",
      "example": "0x0000000000000000000000000000000000000000"
    }
  },
  "required": [
    "chain",
    "token_address"
  ]
}