curl -X GET https://api.gmproxys.com/v1/city \
  -H "X-API-Key: gm_SUA_CHAVE" \
  -H "Content-Type: application/json" \
  -d '{
    "countries": ["br"]
  }'

const response = await fetch("https://api.gmproxys.com/v1/city", {
  method: "GET",
  headers: {
    "X-API-Key": "gm_SUA_CHAVE",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    countries: ["br"],
  }),
});

const data = await response.json();

import requests

response = requests.get(
    "https://api.gmproxys.com/v1/city",
    headers={
        "X-API-Key": "gm_SUA_CHAVE",
        "Content-Type": "application/json",
    },
    json={
        "countries": ["br"],
    },
)

print(response.json())

[
  {
    "code": "abadiadegoias",
    "name": "Abadia de Goiás",
    "count": 1
  },
  {
    "code": "abaete",
    "name": "Abaeté",
    "count": 6
  },
  {
    "code": "abaetetuba",
    "name": "Abaetetuba",
    "count": 22
  },
  {
    "code": "abaiara",
    "name": "Abaiara",
    "count": 1
  }
]

{
  "success": false,
  "message": "Invalid API token."
}