Processed data equates broadly to “Written and Read” data. You write data when you ingest it into Tinybird and also when you materialize data into new Data Sources. You read data when you run queries against your Tinybird Data Sources.
Will every single query cost me? No, only the `productive`` ones, or those you expose through APIs. Exploratory queries in the UI are free.
You can get started here
. You can always set up another free workspace and share Data Sources across them. In the Testing plan you‘ll be limited in the number of requests you can make.