curl --request GET \
  --url https://api.zerion.io/v1/chains/ \
  --header 'Authorization: Basic <encoded-value>'

{
  "links": {
    "self": "https://api.zerion.io/v1/chains/"
  },
  "data": [
    {
      "type": "chains",
      "id": "polygon",
      "attributes": {
        "name": "polygon",
        "external_id": "0x4e454152",
        "icon": {
          "url": "https://token-icons.s3.amazonaws.com/0x0391d2021f89dc339f60fff84546ea23e337750f.png"
        },
        "explorer": {
          "name": "polygonScan",
          "token_url_format": "https://explorer.mainnet.polygon.dev/token/{ADDRESS}",
          "tx_url_format": "https://explorer.mainnet.polygon.dev/tx/{HASH}",
          "home_url": "https://explorer.mainnet.polygon.dev"
        },
        "rpc": {
          "internal_server_url_format": "https://mainnet.polygon.dev/{polygon_API_KEY}",
          "public_servers_url": [
            "https://mainnet.polygon.dev"
          ]
        },
        "flags": {
          "supports_trading": true,
          "supports_sending": true,
          "supports_bridge": true
        }
      },
      "relationships": {
        "native_fungible": {
          "links": {
            "related": "https://api.zerion.io/v1/fungibles/0x2af1df3ab0ab157e1e2ad8f88a7d04fbea0c7dc6"
          },
          "data": {
            "type": "fungibles",
            "id": "0x2af1df3ab0ab157e1e2ad8f88a7d04fbea0c7dc6"
          }
        },
        "wrapped_native_fungible": {
          "links": {
            "related": "https://api.zerion.io/v1/fungibles/0x2af1df3ab0ab157e1e2ad8f88a7d04fbea0c7dc6"
          },
          "data": {
            "type": "fungibles",
            "id": "0x2af1df3ab0ab157e1e2ad8f88a7d04fbea0c7dc6"
          }
        }
      }
    }
  ]
}