Although the names implies otherwise, the PKIsigning V2 API is not a successor of the PKIsigning V1 API. The PKIsigning V1 API is an easy to use, one-stop-shop for easily sending requests for signing and downloading and retrieving the result afterwards.
The V2 API does the same but is more suitable for complex situations where data is not readily available.
The PKIsigning V2 API is a RESTful API to mimic almost all operations that are available in the PKIsigning front-end. It is also the source of our Microsoft PowerAutomate connector. For integrating with PKIsigning without deep diving into authentication and HTTP calls, please use Microsoft PowerAutomate.
PKIsigning is using Swagger for API documentation. Please look at the API documentation in our Swagger interface.