# Templates In the calls to create Credential Request or Credential Offer there is a reference to the respective credential type by its ID. If you want to get the template spec, you can call the API to get the type definition of a certain template. {% openapi src="" path="/templatefielddescription" method="post" %} [sideosAPIv3.yaml](https://1845885721-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbCooZXcPwZpoBiEXpWdN%2Fuploads%2FOHU7wpUAQ4FSfoLZlOWk%2FsideosAPIv3.yaml?alt=media\&token=c4ee2427-0faf-45be-a7cc-a16165911213) {% endopenapi %}