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\Record
• Archive\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\Dimension
• Columns\DimensionMetricFactory — A factory to create metrics from a dimension.
• Columns\DimensionSegmentFactory — A factory to create segments from a dimension.
• Columns\Discriminator
• Columns\Join
• Columns\Join\ActionNameJoin
• Columns\Join\GoalNameJoin
• Columns\Join\SiteNameJoin
• Columns\MetricsList — Manages the global list of metrics that can be used in reports.
• Columns\Updater — Class that handles dimension updates
• Common — 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 methods
• DataAccess\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 mails
• Menu\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\AIAgents\Columns\Metrics\AIAgentMetric — Processed metric for AIAgents.get API method which just copies VisitsSummary.get metrics as differently named metrics.
• 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\Base
• Plugins\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\BotTracking\Columns\Metrics\AcquiredVisits
• Plugins\BotTracking\Columns\Metrics\ClickThroughRate
• Plugins\BotTracking\Columns\Metrics\DocumentRequests
• Plugins\BotTracking\Columns\Metrics\PageRequests
• Plugins\BotTracking\Columns\Metrics\Requests
• 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\CallableProcessedMetric
• Plugins\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\Name
• Plugins\CustomJsTracker\TrackerUpdater — Updates the Matomo JavaScript Tracker "piwik.js" in case plugins extend the tracker.
• Plugins\DevicePlugins\DevicePlugins
• Plugins\Diagnostics\DiagnosticService — Runs the Matomo diagnostics.
• Plugins\Diagnostics\Diagnostic\DiagnosticResult — The result of a diagnostic.
• Plugins\Diagnostics\Diagnostic\DiagnosticResultItem
• Plugins\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\ProfileSummaryProvider
• Plugins\Live\ProfileSummary\ProfileSummaryAbstract — Class ProfileSummaryAbstract
• Plugins\Live\Visitor
• Plugins\Live\VisitorDetailsAbstract — Class VisitorDetailsAbstract
• Plugins\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\VisitorsFromReferrerPercent
• Plugins\TagManager\MenuTagManager — Contains menu entries for the Tag Manager menu.
• Plugins\TagManager\Template\BaseTemplate
• Plugins\TagManager\Template\Tag\BaseTag
• Plugins\TagManager\Template\Trigger\BaseTrigger
• Plugins\TagManager\Template\Variable\BaseVariable
• Plugins\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\UserPreferences
• Plugins\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\SpecificTime
• Scheduler\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 class
• View\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.