# ListClassifiers

Lists the classifiers that you have created for use with image classification.

Type: synchronous

Parameter | Description | Required
--- | --- | ---
`trainingoptions` | A Boolean value (default false) that specifies whether to return the training options set for each classifier. | No

## Example

    /action=ListClassifiers&trainingoptions=TRUE

## Response

The response includes a list of classifiers, with the following information:

- `classifier` - the name of the classifier.

- `state` - describes the state of the classifier.

  - `TRAINED` - the classifier has been trained and is ready to use.
  - `TRAINING` - training is in progress.
  - `STALE` - the classifier requires training. You can begin training with the action BuildClassifier.
  - `PAUSED` - training has been paused by the action PauseBuildClassifier. You cannot use the classifier in this state. Resume training by running the action BuildClassifier.
- `numclasses` - the number of classes that exist in the classifier.
- `remaining_iterations` - the number of training iterations that are remaining. This element is present only when training is paused.
- `trainingoptions` - shows the training options that are associated with the classifier. This element is present only when you set the action parameter `trainingoptions=true`, and have set one or more training options with the action SetClassifierTrainingOption.

    <autnresponse>
      <action>LISTCLASSIFIERS</action>
      <response>SUCCESS</response>
      <responsedata>
        <classifier>
          <classifier>vehicles</classifier>
          <state>STALE</state>
          <numclasses>3</numclasses>
          <trainingoptions>
            <trainingoption>
              <key>iterations</key>
              <value>250</value>
            </trainingoption>
          </trainingoptions>
        </classifier>
      </responsedata>
    </autnresponse>

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