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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Emotiv does offer power band at 8Hz for free https://emotiv.gitbook.io/cortex-api/data-subscription. They also provide example code on their GitHub https://github.com/Emotiv/cortex-v2-example. As long as you are familiar with one of those coding languages, setup is fast after reading through the README. But if you are requiring something be easy to learn in under 3 minutes then you might want to consider other options.
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