curl --request POST \
  --url https://metadata.sequence.app/rpc/Metadata/DirectoryGetNetworks \
  --header 'Content-Type: application/json' \
  --header 'X-Access-Key: <api-key>' \
  --data '
{
  "includeTestnets": true,
  "onlyFeatured": false
}
'

{
  "networks": [
    84532,
    19011,
    42161,
    168587773,
    43114,
    42170,
    10,
    37714555429,
    21000000,
    "100",
    11155111,
    8453,
    "137",
    1946,
    1993,
    "80002",
    97,
    40875,
    43113,
    "1",
    37084624,
    "5",
    80001,
    3776,
    6038361,
    660279,
    421614,
    33111,
    1101,
    33139,
    56
  ]
}