This is a complete list of available classes:
API\Request — Dispatches API requests to the appropriate API method.Access — Singleton that manages user access to Matomo (formerly Piwik) resources.Archive — The Archive class is used to query cached analytics statistics (termed "archive data").ArchiveProcessor — Used by Archiver instances to insert and aggregate archive data.ArchiveProcessor\Parameters — Contains the analytics parameters for the reports that are currently being archived.ArchiveProcessor\RecordArchive\ArchiveInvalidator — Service that can be used to invalidate archives or add archive references to a list so they will be invalidated later.AuthResult — Authentication result.Auth\Password — Main class to handle actions related to password hashing and verification.Auth\PasswordStrength — Main class to handle actions related to password strength rules and verification of those rules.Category\Subcategory — Base type for subcategories.Columns\ComputedMetricFactory — A factory to create computed metrics.Columns\DimensionColumns\DimensionMetricFactory — A factory to create metrics from a dimension.Columns\DimensionSegmentFactory — A factory to create segments from a dimension.Columns\DiscriminatorColumns\JoinColumns\Join\ActionNameJoinColumns\Join\GoalNameJoinColumns\Join\SiteNameJoinColumns\MetricsList — Manages the global list of metrics that can be used in reports.Columns\Updater — Class that handles dimension updatesCommon — Contains helper methods used by both Matomo Core and the Matomo Tracking engine.Config — Singleton that provides read & write access to Matomo's INI configuration.DI — Proxy class for using DI related methodsDataAccess\LogAggregator — Contains methods that calculate metrics by aggregating log data (visits, actions, conversions, ecommerce items).DataTable — The primary data structure used to store analytics data in Matomo.DataTable\BaseFilter — A filter is set of logic that manipulates a DataTable.DataTable\Filter\AddColumnsProcessedMetrics — Adds processed metrics columns to a DataTable using metrics that already exist.DataTable\Filter\AddColumnsProcessedMetricsGoal — Adds goal related metrics to a DataTable using metrics that already exist.DataTable\Filter\AddSegmentByLabel — Executes a filter for each row of a DataTable and generates a segment filter for each row.DataTable\Filter\AddSegmentByLabelMapping — Executes a filter for each row of a DataTable and generates a segment filter for each row.DataTable\Filter\AddSegmentByRangeLabel — Executes a filter for each row of a DataTable and generates a segment filter for each row.DataTable\Filter\AddSegmentBySegmentValue — Converts for each row of a DataTable a segmentValue to a segment (expression).DataTable\Filter\AddSegmentValue — Executes a filter for each row of a DataTable and generates a segment filter for each row.DataTable\Filter\AddSummaryRow — Adds a summary row to DataTables that contains the sum of all other table rows.DataTable\Filter\BeautifyRangeLabels — A DataTable filter that replaces range label columns with prettier, human-friendlier versions.DataTable\Filter\BeautifyTimeRangeLabels — A DataTable filter that replaces range labels whose values are in seconds with prettier, human-friendlier versions.DataTable\Filter\CalculateEvolutionFilter — A DataTable filter that calculates the evolution of a metric and adds it to each row as a percentage.DataTable\Filter\ColumnCallbackAddColumn — Adds a new column to every row of a DataTable based on the result of callback.DataTable\Filter\ColumnCallbackAddColumnPercentage — Calculates a percentage value for each row of a DataTable and adds the result to each row.DataTable\Filter\ColumnCallbackAddColumnQuotient — Calculates the quotient of two columns and adds the result as a new column for each row of a DataTable.DataTable\Filter\ColumnCallbackAddMetadata — Executes a callback for each row of a DataTable and adds the result as a new row metadata value.DataTable\Filter\ColumnCallbackDeleteMetadata — Executes a callback for each row of a DataTable and removes the defined metadata column from each row.DataTable\Filter\ColumnCallbackDeleteRow — Deletes all rows for which a callback returns true.DataTable\Filter\ColumnCallbackReplace — Replaces one or more column values in each row of a DataTable with the results of a callback.DataTable\Filter\ColumnDelete — Filter that will remove columns from a DataTable using either a blacklist, allowlist or both.DataTable\Filter\ExcludeLowPopulation — Deletes all rows for which a specific column has a value that is lower than specified minimum threshold value.DataTable\Filter\GroupBy — DataTable filter that will group DataTable rows together based on the results of a reduce function.DataTable\Filter\Limit — Delete all rows from the table that are not in the given [offset, offset+limit) range.DataTable\Filter\MetadataCallbackAddMetadata — Executes a callback for each row of a DataTable and adds the result to the row as a metadata value.DataTable\Filter\MetadataCallbackReplace — Execute a callback for each row of a DataTable passing certain column values and metadata as metadata, and replaces row metadata with the callback result.DataTable\Filter\Pattern — Deletes every row for which a specific column does not match a supplied regex pattern.DataTable\Filter\PatternRecursive — Deletes rows that do not contain a column that matches a regex pattern and do not contain a subtable that contains a column that matches a regex pattern.DataTable\Filter\PrependSegment — Executes a callback for each row of a DataTable and prepends each existing segment with the given segment.DataTable\Filter\PrependValueToMetadata — Executes a callback for each row of a DataTable and prepends the given value to each metadata entry but only if the given metadata entry exists.DataTable\Filter\RemoveSubtables — Delete all existing subtables from rows.DataTable\Filter\ReplaceColumnNames — Replaces column names in each row of a table using an array that maps old column names new ones.DataTable\Filter\ReplaceSummaryRowLabel — Replaces the label of the summary row with a supplied label.DataTable\Filter\Sort — Sorts a DataTable based on the value of a specific column.DataTable\Filter\Truncate — Truncates a DataTable by merging all rows after a certain index into a new summary row.DataTable\Map — Stores an array of DataTables indexed by one type of DataTable metadata (such as site ID or period).DataTable\Row — This is what a DataTable is composed of.DataTable\Simple — A DataTable where every row has two columns: label and value.Date — Utility class that wraps date/time related PHP functions.Db — Contains SQL related helper functions for Matomo's MySQL database.DbHelper — Contains database related helper functions.Filesystem — Contains helper functions that deal with the filesystem.FrontController — This singleton dispatches requests to the appropriate plugin Controller.Http — Contains HTTP client related helper methods that can retrieve content from remote servers and optionally save to a local file.IP — Contains IP address helper functions (for both IPv4 and IPv6).Intl\Data\Provider\CurrencyDataProvider — Provides currency data.Intl\Data\Provider\LanguageDataProvider — Provides language data.Intl\Data\Provider\RegionDataProvider — Provides region related data (continents, countries, etc.).Log — Logging utility class.Mail — Class for sending mailsMenu\MenuAbstract — Base class for classes that manage one of Matomo's menus.Menu\MenuAdmin — Contains menu entries for the Admin menu.Menu\MenuTop — Contains menu entries for the Top menu (the menu at the very top of the page).Metrics — This class contains metadata regarding core metrics and contains several related helper functions.Metrics\Formatter — Contains methods to format metric values.Metrics\Formatter\Html — Metrics formatter that formats for HTML output.NoAccessException — Exception thrown when a user doesn't have sufficient access to a resource.Nonce — Nonce class.Notification — Describes a UI notification.Notification\Manager — Posts and removes UI notifications (see Notification to learn more).Option — Convenient key-value storage for user specified options and temporary data that needs to be persisted beyond one request.Period — Date range representation.Period\Range — Arbitrary date range representation.Piwik — Main piwik helper class.Plugin — Base class of all Plugin Descriptor classes.Plugin\API — The base class of all API singletons.Plugin\AggregatedMetric — Base type for metric metadata classes that describe aggregated metrics.Plugin\Archiver — The base class that should be extended by plugins that compute their own analytics data.Plugin\Controller — Base class of all plugin Controllers.Plugin\ControllerAdmin — Base class of plugin controllers that provide administrative functionality.Plugin\Dimension\ActionDimension — Defines a new action dimension that records any information during tracking for each action.Plugin\Dimension\ConversionDimension — Defines a new conversion dimension that records any visit related information during tracking.Plugin\Dimension\VisitDimension — Defines a new visit dimension that records any visit related information during tracking.Plugin\Manager — The singleton that manages plugin loading/unloading and installation/uninstallation.Plugin\Menu — Base class of all plugin menu providers.Plugin\Metric — Base type of metric metadata classes.Plugin\ProcessedMetric — Base type for processed metrics.Plugin\Report — Defines a new report.Plugin\ReportsProvider — Get reports that are defined by plugins.Plugin\Segment — Creates a new segment that can be used for instance within the \Piwik\Columns\Dimension::configureSegment() method.Plugin\SettingsProvider — Base class of all plugin settings providers.Plugin\Tasks — Base class for all Tasks declarations.Plugin\ViewDataTable — The base class of all report visualizations.Plugin\Visualization — The base class for report visualizations that output HTML and use JavaScript.Plugins\Actions\Columns\Metrics\AveragePageGenerationTime — The average amount of time it takes to generate a page.Plugins\Actions\Columns\Metrics\AverageTimeOnPage — The average amount of time spent on a page.Plugins\Actions\Columns\Metrics\BounceRate — The bounce rate for individual pages.Plugins\Actions\Columns\Metrics\ExitRate — Percent of visits that finished on this page.Plugins\Bandwidth\Columns\Metrics\AvgBandwidth — The average amount bandwidth per page.Plugins\Bandwidth\Columns\Metrics\BasePlugins\Bandwidth\Columns\Metrics\DownloadBandwidth — The total amount bandwidth used for downloads.Plugins\Bandwidth\Columns\Metrics\HitsWithBandwidth — The amount of a pages that were tracked having a bandwidth.Plugins\Bandwidth\Columns\Metrics\MaxBandwidth — The max amount bandwidth of a pages.Plugins\Bandwidth\Columns\Metrics\MinBandwidth — The min amount bandwidth of a pages.Plugins\Bandwidth\Columns\Metrics\OverallBandwidth — The total amount bandwidth used.Plugins\Bandwidth\Columns\Metrics\PageviewBandwidth — The total amount bandwidth used for page views.Plugins\Bandwidth\Columns\Metrics\SumBandwidth — The sum amount bandwidth of a pages.Plugins\Contents\Columns\Metrics\InteractionRate — The content interaction rate.Plugins\CoreHome\Columns\Metrics\ActionsPerVisit — The average number of actions per visit.Plugins\CoreHome\Columns\Metrics\AverageTimeOnSite — The average number of seconds spent on the site per visit.Plugins\CoreHome\Columns\Metrics\BounceRate — The percentage of visits that leave the site without visiting another page.Plugins\CoreHome\Columns\Metrics\CallableProcessedMetricPlugins\CoreHome\Columns\Metrics\ConversionRate — The percent of visits that result in a conversion.Plugins\CoreHome\Columns\Metrics\EvolutionMetric — Calculates evolution values for any other metric.Plugins\CoreHome\Columns\Metrics\VisitsPercent — Percent of visits in the whole table.Plugins\CoreHome\SystemSummary\Item — This class can be used to add a new entry / item to the system summary widget.Plugins\CoreVisualizations\Metrics\Formatter\Numeric — A metrics formatter that prettifies metric values without returning string values.Plugins\CoreVisualizations\Visualizations\Cloud\Config — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\CoreVisualizations\Visualizations\Graph\Config — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\CoreVisualizations\Visualizations\HtmlTable\Config — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\CoreVisualizations\Visualizations\JqplotGraph\Config — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\CoreVisualizations\Visualizations\JqplotGraph\Evolution\Config — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\CoreVisualizations\Visualizations\Sparklines\Config — DataTable Visualization that derives from Sparklines.Plugins\CustomDimensions\Columns\Metrics\AverageTimeOnDimension — The average amount of time spent on a dimension.Plugins\CustomDimensions\Dimension\NamePlugins\CustomJsTracker\TrackerUpdater — Updates the Matomo JavaScript Tracker "piwik.js" in case plugins extend the tracker.Plugins\DevicePlugins\DevicePluginsPlugins\Diagnostics\DiagnosticService — Runs the Matomo diagnostics.Plugins\Diagnostics\Diagnostic\DiagnosticResult — The result of a diagnostic.Plugins\Diagnostics\Diagnostic\DiagnosticResultItemPlugins\Events\Columns\Metrics\AverageEventValue — The average value for a triggered event.Plugins\Goals\Columns\Metrics\AverageOrderRevenue — The average value for each order.Plugins\Goals\Columns\Metrics\AveragePrice — The average price for each ecommerce order or abandoned cart.Plugins\Goals\Columns\Metrics\AverageQuantity — The average amount of products in each order or abandoned cart.Plugins\Goals\Columns\Metrics\GoalConversionRate — The conversion rate for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecificProcessedMetric — Base class for processed metrics that are calculated using metrics that are specific to certain goals.Plugins\Goals\Columns\Metrics\GoalSpecific\AverageOrderRevenue — The average order revenue for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\ConversionEntryRate — The entry page conversion rate for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\ConversionPageRate — The page conversion rate for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\ConversionRate — The conversion rate for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\Conversions — The conversions for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\ConversionsAttrib — The conversions for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\ConversionsEntry — The conversions for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\ItemsCount — The number of ecommerce order items for conversions of a goal.Plugins\Goals\Columns\Metrics\GoalSpecific\Revenue — Revenue for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\RevenueAttrib — Attributed Revenue for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\RevenueEntry — Attributed Revenue for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\RevenuePerEntry — Revenue per entry for a specific goal.Plugins\Goals\Columns\Metrics\GoalSpecific\RevenuePerVisit — Revenue per visit for a specific goal.Plugins\Goals\Columns\Metrics\ProductConversionRate — The conversion rate for ecommerce orders.Plugins\Goals\Columns\Metrics\RevenuePerVisit — The amount of revenue per visit (or per conversion if there are no visits).Plugins\Live\ProfileSummaryProviderPlugins\Live\ProfileSummary\ProfileSummaryAbstract — Class ProfileSummaryAbstractPlugins\Live\VisitorPlugins\Live\VisitorDetailsAbstract — Class VisitorDetailsAbstractPlugins\Live\Visualizations\VisitorLog\Config — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\MobileMessaging\SMSProvider — The SMSProvider abstract class is used as a base class for SMS provider implementations.Plugins\MultiSites\Columns\Metrics\EcommerceOnlyEvolutionMetric — Ecommerce evolution metric adapter.Plugins\PagePerformance\Columns\Metrics\AveragePageLoadTime — The average amount of time it took loading a page completely.Plugins\PagePerformance\Columns\Metrics\AveragePerformanceMetric — The average amount for a certain performance metric.Plugins\PagePerformance\Columns\Metrics\AverageTimeDomCompletion — The average amount of time the browser needs to load media any Javascript listening for the DOMContentLoaded event.Plugins\PagePerformance\Columns\Metrics\AverageTimeDomProcessing — The average amount of time the browser spends until user can start interacting with the page.Plugins\PagePerformance\Columns\Metrics\AverageTimeNetwork — The average amount of time needed to connect to the server.Plugins\PagePerformance\Columns\Metrics\AverageTimeOnLoad — The average amount of time browser needs to execute javascript waiting for window.load event.Plugins\PagePerformance\Columns\Metrics\AverageTimeServer — The average amount of time the server needs to start serving a page.Plugins\PagePerformance\Columns\Metrics\AverageTimeTransfer — The average amount of time it takes to transfer a page.Plugins\Referrers\Columns\Metrics\VisitorsFromReferrerPercentPlugins\TagManager\MenuTagManager — Contains menu entries for the Tag Manager menu.Plugins\TagManager\Template\BaseTemplatePlugins\TagManager\Template\Tag\BaseTagPlugins\TagManager\Template\Trigger\BaseTriggerPlugins\TagManager\Template\Variable\BaseVariablePlugins\Tour\Engagement\Challenge — Defines a new challenge which a super user needs to complete in order to become a "Matomo expert".Plugins\TreemapVisualization\TreemapConfig — DataTable Visualization that derives from HtmlTable and sets show_extra_columns to true.Plugins\UsersManager\UserPreferencesPlugins\VisitFrequency\Columns\Metrics\ReturningMetric — Processed metric for VisitFrequency.get API method which just copies VisitsSummary.get metrics as differently named metrics.RankingQuery — The ranking query class wraps an arbitrary SQL query with more SQL that limits the number of results while aggregating the rest in an a new "Others" row.Report\ReportWidgetConfig — Defines a widget config that is used to render a report.Report\ReportWidgetFactory — Report widget factory.Request — Provides (type safe) access methods for request parameters.Scheduler\Schedule\Daily — Daily class is used to schedule tasks every day.Scheduler\Schedule\Hourly — Hourly class is used to schedule tasks every hour.Scheduler\Schedule\Monthly — Monthly class is used to schedule tasks every month.Scheduler\Schedule\Schedule — Describes the interval on which a scheduled task is executed.Scheduler\Schedule\SpecificTimeScheduler\Schedule\Weekly — Weekly class is used to schedule tasks every week.Scheduler\Scheduler — Schedules task execution.Scheduler\Task — Describes a task that should be executed on a given time.Segment — Limits the set of visits Matomo uses when aggregating analytics data.Segment\SegmentsList — Manages the global list of segments that can be used.SettingsPiwik — Contains helper methods that can be used to get common Matomo settings.SettingsServer — Contains helper methods that can be used to get information regarding the server, its settings and currently used PHP settings.Settings\FieldConfig — Lets you configure a form field.Settings\FieldConfig\ArrayField — Lets you configure a field for a field array.Settings\FieldConfig\MultiPair — Lets you configure a multi pair field.Settings\Plugin\SystemConfigSetting — Describes a system wide setting.Settings\Plugin\SystemSetting — Describes a system wide setting.Settings\Setting — Base setting type class.Settings\Settings — Base class of all settings providers.Singleton — The singleton base class restricts the instantiation of derived classes to one object only.Site — Provides access to individual site entity data (including name, URL, etc.).SiteContentDetector — This class provides detection functions for specific content on a site.Translation\Translator — Translates messages.Updater — Load and execute all relevant, incremental update scripts for Matomo core and plugins, and bump the component version numbers for completed updates.Updater\Migration — Base class for migrations.Updater\Migration\Config\Factory — Provides config migrations.Updater\Migration\Custom — Create a custom migration that can execute any callback.Updater\Migration\Db — Base class for a single database migration.Updater\Migration\Db\Factory — Provides database migrations.Updater\Migration\Factory — Migration factory to create various migrations that implement the Migration interface.Updater\Migration\Plugin\Factory — Provides plugin migrations.Updates — Base class for update scripts.Url — Provides URL related helper methods.UrlHelper — Contains less commonly needed URL helper methods.Version — Matomo version information.View — Encapsulates and manages a Twig template.ViewDataTable\Config — Contains base display properties for ViewDataTables.ViewDataTable\Factory — Provides a means of creating ViewDataTable instances by ID.ViewDataTable\RequestConfig — Contains base request properties for ViewDataTable instances.View\SecurityPolicy — Content Security Policy HTTP Header management classView\UIControl — Base type of UI controls.Widget\Widget — Defines a new widget.Widget\WidgetConfig — Configures a widget.Widget\WidgetContainerConfig — Defines a new widget container.Widget\WidgetsList — Manages the global list of reports that can be displayed as dashboard widgets.