Available HG APIS:

 - Brazil Weather
Request: http://api.hgbrasil.com/weather/?format=json&cid=BRXX0198
Response example: http://hiperload.com/s/jg0n94t3q/e
Status page: http://hgbrasil.com/status/weather
  Params:
    format:
      json
      json-cors (JSON with Cross-Origin Resource Sharing headers, localhost for development or host name of API Key)
      debug
      jsonp
      php-serialize (default)
    cid:
      Yahoo city code
    user_ip: (only with API key)
      Send your user IP to search location by GeoIP.
    city_name: (only with API key)
      Send city name to search weather conditions.
    lat: (only with API key)
      Send latitude for search weather conditions.
    lon: (only with API key)
      Send longitude for search weather conditions.
    key: (comming soon)
      Set your API key to use some search params.

 - Social login with HG Accounts
See details in: http://accounts.hgbrasil.com/applications/new

 - Currencies exchange conversion (beta)
Request: http://api.hgbrasil.com/exchange/?currencies=USDBRL&format=json
Response example: http://hiperload.com/s/qr0z65v7l/e
  Available Params:
    format:
      json (default)
      debug
      jsonp
      php-serialize
    currencies:
      Code of currencies for exchange conversion, like USDBRL (for USD to BRL)
    callback:
      Set your callback name for jsonp format.