curl --request POST \
  --url https://api.kas.fyi/v1/rpc/getBalancesByAddresses \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "addresses": [
    "kaspa:qpzpfwcsqsxhxwup26r55fd0ghqlhyugz8cp6y3wxuddc02vcxtjg75pspnwz",
    "kaspa:qpz2vgvlxhmyhmt22h538pjzmvvd52nuut80y5zulgpvyerlskvvwm7n4uk5a"
  ]
}'

{
  "entries": [
    {
      "address": "kaspa:qpzpfwcsqsxhxwup26r55fd0ghqlhyugz8cp6y3wxuddc02vcxtjg75pspnwz",
      "balance": "1000000000"
    }
  ]
}