How to access the full API of any data set without limitations?

Go to any data page such as https://datasn.io/p/245

1. Click "Online Query"

2. Log in if you haven't

3. Generate a client key if none

4. Click "Add" to generate a client key and return to the query page

5. Click "Generate API Address" and click "Open" to access all the data rows via the API address