Here is a list of all documented namespaces with brief descriptions:

[detail level 123456]

▼NQuantConnect
▼NAlgorithm
►NFramework
►NAlphas
NAnalysis
NSerialization
NExecution
►NPortfolio
NSignalExports
NRisk
NSelection
NPython
NSelection
▼NAlgorithmFactory
►NPython
NWrappers
▼NApi
NSerialization
NBenchmarks
▼NBrokerages
NBacktesting
NCrossZero
NPaper
NCommands
NConfiguration
▼NData
NAuxiliary
NCommon
NConsolidators
►NCustom
NAlphaStreams
NIconicTypes
NIntrinio
NTiingo
NFundamental
NMarket
NShortable
NUniverseSelection
NDataSource
▼NDownloaderDataProvider
►NLauncher
►NModels
NConstants
NExceptions
▼NIndicators
NCandlestickPatterns
NInterfaces
▼NLean
►NEngine
►NDataFeeds
►NEnumerators
NFactories
NQueues
NTransport
NWorkScheduling
NHistoricalData
NRealTime
NResults
NServer
NSetup
NStorage
NTransactionHandlers
NLauncher
NLogging
NMessaging
NNotifications
▼NOptimizer
NLauncher
NObjectives
NParameters
NStrategies
▼NOrders
NFees
NFills
NOptionExercise
NSerialization
NSlippage
NTimeInForces
NPackets
NParameters
NPython
NQueues
▼NReport
NReportElements
NResearch
NScheduling
▼NSecurities
NCfd
NCrypto
NCryptoFuture
NCurrencyConversion
NEquity
NForex
NFuture
►NFutureOption
NApi
NIndex
NIndexOption
NInterfaces
►NOption
NStrategyMatcher
NPositions
NVolatility
NStatistics
NStorage
▼NToolBox
NAlgoSeekFuturesConverter
NCoarseUniverseGenerator
NKaikoDataConverter
NRandomDataGenerator
▼NUtil
NRateLimit