If you want to use the NewsomaticAPI service on its full potential, you will need more API calls than the default 500 API calls/day limit, which you get when you are using the NewsomaticAPI API key you get after a purchase of the Newsomatic plugin. In this case, I have some good news for you! I created some custom plans for NewsomaticAPI and listed it on RapidAPI. Here you will find multiple extended plans for NewsomaticAPI, which will be able to grant extended API call count for you, helped by the dynamic API framework of RapidAPI.
Get the Newsomatic plugin ► https://1.envato.market/newsomatic