1) Will it allow me to diff AWS RDS Aurora/MySQL serverA database schemaA against AWS RDS Aurora/MySQL serverB database schemaB ?
2) Are there APIs to initiate and view/parse these diffs that you generate or is it all through UI?
There is a REST API that accepts the same parameters as in the UI and returns the diff results in JSON + optionally, materializes the tables in your DB with row-level differences.