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n8n
Free and source-available fair-code licensed workflow automation tool. Easily automate tasks across different services.
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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.
There is also https://nodered.org/
I recommend https://n8n.io/ since it should have all the features you mentioned.
I also use Huginn, which I like even more in some ways. Not only because of its name and logo, but that also is a factor. :D https://github.com/huginn/huginn I think Huginn can do everything n8n can.
NOTE:
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Hence, a higher number means a more popular project.