You might want to break this down further before you can implement the filter. What do you define as “relevant” to the report?
Like in your other question, you’ll need to consider how do you want the report to be generated, in what format, and with which preferred services? Can you provide an example template you want to use?
If the external service has a Developer API Reference/Documentation, then yes, you should be able to integrate the endpoints in Make using the generic HTTP “Make a request” module.
You can also suggest for it to be made in the Idea exchange. Don’t forget to search for it first, in case someone already suggested it!