Comment by alphan0n

The API might be a good place to start.

I’m on mobile at the moment so I haven’t been able to dig too deep, but here’s [0] a query that returns the metadata for everything modified since Jan 1st (add more rows at the end if it’s cut off). I don’t think it shows deletes directly, but it can be compared to the current catalog. API documentation here [1]

[0] https://catalog.data.gov/api/3/action/package_search?q=metad...

[1] https://data.gov/developers/apis/

*fixed first url