// Request
curl -X GET -H 'Content-Type: application/json' https://zetachain.blockpi.network/lcd/v1/<your-api-key>/zeta-chain/observer/supportedChains
// Result
{
"Chains": [
"Eth",
"Polygon",
"BscMainnet",
"Goerli",
"Ropsten",
"Baobab",
"BscTestnet",
"Mumbai",
"BTCTestnet"
]
}