diff --git a/src/lib/kaboutdata.h b/src/lib/kaboutdata.h
--- a/src/lib/kaboutdata.h
+++ b/src/lib/kaboutdata.h
@@ -29,6 +29,7 @@
 #include <kcoreaddons_export.h>
 #include <QString>
 #include <QSharedDataPointer>
+#include <QObject>
 
 template <class T> class QList;
 class QCommandLineParser;
@@ -67,6 +68,12 @@
  */
 class KCOREADDONS_EXPORT KAboutPerson
 {
+    Q_GADGET
+    Q_PROPERTY(QString name READ name CONSTANT)
+    Q_PROPERTY(QString task READ task CONSTANT)
+    Q_PROPERTY(QString emailAddress READ emailAddress CONSTANT)
+    Q_PROPERTY(QString webAddress READ webAddress CONSTANT)
+    Q_PROPERTY(QString ocsUsername READ ocsUsername CONSTANT)
     friend class KAboutData;
 public:
     /**
@@ -81,8 +88,10 @@
      * @param webAddress Home page of the person.
      *
      * @param ocsUsername Open Collaboration Services username of the person.
+     *
+     * Default arguments @since 5.53
      */
-    explicit KAboutPerson(const QString &name,
+    explicit KAboutPerson(const QString &name = QString(),
                           const QString &task = QString(),
                           const QString &emailAddress = QString(),
                           const QString &webAddress = QString(),
@@ -176,8 +185,14 @@
  */
 class KCOREADDONS_EXPORT KAboutLicense
 {
+    Q_GADGET
+    Q_PROPERTY(QString name READ name CONSTANT)
+    Q_PROPERTY(QString text READ text CONSTANT)
+    Q_PROPERTY(KAboutLicense::LicenseKey key READ key CONSTANT)
+    Q_PROPERTY(QString spdx READ spdx CONSTANT)
     friend class KAboutData;
 public:
+
     /**
      * Describes the license of the software.
      */
@@ -197,22 +212,30 @@
         LGPL_V3 = 7,
         LGPL_V2_1 = 8 ///< @since 5.25
     };
+    Q_ENUM(LicenseKey)
 
     /**
      * Format of the license name.
      */
     enum NameFormat {
         ShortName,
         FullName
     };
+    Q_ENUM(NameFormat)
 
     /**
      * Whether later versions of the license are allowed.
      */
     enum VersionRestriction {
         OnlyThisVersion,
         OrLaterVersions
     };
+    Q_ENUM(VersionRestriction)
+
+    /**
+     * @since 5.53
+     */
+    explicit KAboutLicense();
 
     /**
      * Copy constructor.  Performs a deep copy.
@@ -240,9 +263,11 @@
     /**
      * Returns the license name.
      *
+     * Default argument @since 5.53
+     *
      * @return The license name as a string.
      */
-    QString name(KAboutLicense::NameFormat formatName) const;
+    QString name(KAboutLicense::NameFormat formatName = ShortName) const;
 
     /**
      * Returns the license key.
@@ -382,6 +407,22 @@
  */
 class KCOREADDONS_EXPORT KAboutData
 {
+    Q_GADGET
+    Q_PROPERTY(QString displayName READ displayName CONSTANT)
+    Q_PROPERTY(QString productName READ productName CONSTANT)
+    Q_PROPERTY(QString componentName READ componentName CONSTANT)
+    Q_PROPERTY(QVariant programLogo READ programLogo CONSTANT)
+    Q_PROPERTY(QString shortDescription READ shortDescription CONSTANT)
+    Q_PROPERTY(QString homepage READ homepage CONSTANT)
+    Q_PROPERTY(QString bugAddress READ bugAddress CONSTANT)
+    Q_PROPERTY(QString version READ version CONSTANT)
+    Q_PROPERTY(QString otherText READ otherText CONSTANT)
+    Q_PROPERTY(QVariantList authors READ authorsVariant CONSTANT) //constant in practice as addAuthor is not exposed to Q_GADGET
+    Q_PROPERTY(QVariantList credits READ creditsVariant CONSTANT)
+    Q_PROPERTY(QVariantList translators READ translatorsVariant CONSTANT)
+    Q_PROPERTY(QVariantList licenses READ licensesVariant CONSTANT)
+    Q_PROPERTY(QString copyrightStatement READ copyrightStatement CONSTANT)
+    Q_PROPERTY(QString desktopFileName READ desktopFileName CONSTANT)
 public:
 
     /**
@@ -512,11 +553,13 @@
      * Sets the property desktopFileName to "org.kde."+componentName and
      * the property organizationDomain to "kde.org".
      *
+     * Default arguments @since 5.53
+     *
      * @see setOrganizationDomain(const QByteArray&), setDesktopFileName(const QString&)
      */
-    KAboutData(const QString &componentName,
-               const QString &displayName,
-               const QString &version
+    explicit KAboutData(const QString &componentName = {},
+               const QString &displayName = {},
+               const QString &version = {}
               );
 
     /**
@@ -1115,13 +1158,21 @@
     QString desktopFileName() const;
 
 private:
+    QVariantList licensesVariant() const;
+    QVariantList authorsVariant() const;
+    QVariantList creditsVariant() const;
+    QVariantList translatorsVariant() const;
 
     friend void KCrash::defaultCrashHandler(int sig);
     static const KAboutData *applicationDataPointer();
 
     class Private;
     Private *const d;
 };
 
+Q_DECLARE_METATYPE(KAboutData)
+Q_DECLARE_METATYPE(KAboutLicense)
+Q_DECLARE_METATYPE(KAboutPerson)
+
 #endif
 
diff --git a/src/lib/kaboutdata.cpp b/src/lib/kaboutdata.cpp
--- a/src/lib/kaboutdata.cpp
+++ b/src/lib/kaboutdata.cpp
@@ -195,6 +195,11 @@
     return QString();
 }
 
+KAboutLicense::KAboutLicense()
+    : d(new Private(Unknown, {}, nullptr))
+{}
+
+
 KAboutLicense::KAboutLicense(LicenseKey licenseType,
                              VersionRestriction versionRestriction,
                              const KAboutData *aboutData)
@@ -1115,6 +1120,7 @@
     } else {
         qCWarning(KABOUTDATA) << "Could not initialize the equivalent properties of Q*Application: no instance (yet) existing.";
     }
+
     // KF6: Rethink the current relation between KAboutData::applicationData and the Q*Application metadata
     // Always overwriting the Q*Application metadata here, but not updating back the KAboutData
     // in applicationData() is unbalanced and can result in out-of-sync data if the Q*Application
@@ -1206,3 +1212,34 @@
         ::exit(EXIT_SUCCESS);
     }
 }
+
+template <class T>
+QVariantList listToVariant(const QList<T>& values)
+{
+    QVariantList ret;
+    ret.reserve(values.count());
+    for(const auto &license: values) {
+        ret << QVariant::fromValue(license);
+    }
+    return ret;
+}
+
+QVariantList KAboutData::licensesVariant() const
+{
+    return listToVariant(d->_licenseList);
+}
+
+QVariantList KAboutData::authorsVariant() const
+{
+    return listToVariant(d->_authorList);
+}
+
+QVariantList KAboutData::creditsVariant() const
+{
+    return listToVariant(d->_creditList);
+}
+
+QVariantList KAboutData::translatorsVariant() const
+{
+    return listToVariant(d->_translatorList);
+}