City App Blogger have unlimited access to blogger API, you no need to have blogger api key, and you no need to worried about quota access.
But to have unlimited access you need access key from us, to verify that request is valid,
Generate your Access Key, please click the link here :
https://dream-space.web.id/blogger/access-key
When generate success you will get data like this
Copy your generated Access Key > open Android Studio project and navigate to AppConfig.java -> General file and put your Access Key to the access_key string tag.
Setting for your blogger site Settings > Site feed > Change to Full
