Salesforce – How can I get the code coverage of a class / org?

To get code coverage of a class or all classes you can use Tooling API on objects like:

  • ApexCodeCoverage – contains coverage per class per test class
  • ApexCodeCoverageAggregate – contains coverage per class for all test classes
  • ApexOrgWideCoverage – contains coverage overall for all classes in the org

The best way is run queries using Developer Console