OnDMARC has a RESTful JSON API that can be used to integrate with your custom dashboards and other internal systems.
The API is Swagger compatible and it is possible to use a wide range of programming languages with the API ( https://swagger.io/tools/open-source/open-source-integrations). Our Swagger specification is available here - https://static.ondmarc.com/api/ondmarc/v1/swagger.yaml
Documentation on our API is available here - https://app.swaggerhub.com/apis/ondmarc/ondmarc. We are constantly expanding our APIs to include more functionality, so do check back for more recent versions.