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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.
You could also put something like searx [1] in front to search all at once (or at least provide unified interface for all).
[1] https://searx.github.io/searx/
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