# List Classifiers and Classes

To list the classifiers that you have created, and check their status (whether they need training), use the following procedure.

To list classifiers

- Run the action `ListClassifiers`:

      http://localhost:14000/action=ListClassifiers&trainingoptions=TRUE

  Media Server returns a list of classifiers that you have created.

To list the classes in a classifier

- Run the action `ListClasses`:

      http://localhost:14000/action=ListClasses&classifier=vehicles
                                               &metadata=true
                                               &imagelabels=true

  Media Server returns a list of classes in the specified classifier.

  If you set the action parameter `imagelabels` to `true`, Media Server returns the labels of images associated with each class.

  If you set the action parameter `metadata` to `true`, Media Server returns the metadata you have added to each class.

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