{
  "networks": [
    { "name": "mainnet", "chain_id": 1, "display_name": "Ethereum" },
    { "name": "base", "chain_id": 8453, "display_name": "Base" },
    { "name": "arbitrum", "chain_id": 42161, "display_name": "Arbitrum" },
    { "name": "optimism", "chain_id": 10, "display_name": "Optimism" },
    { "name": "polygon", "chain_id": 137, "display_name": "Polygon" }
  ]
}