Top 20 NuGet cognitive Packages

This is the Azure Cognitive Search client library for developing .NET applications with rich search experiences. It enables you to query your indexes, update documents in your indexes, and manage indexes, synonym maps, indexers, data sources, or other service-level resources.
Microsoft Cognitive Toolkit Libraries, GPU Build
IBM.Watson.Common is a library of functionality needed for SDKs generated using the IBM OpenApi SDK generator. The library has functionality specific for the generated SDK.
IBM.Watson.Assistant.v2 wraps the Watson Assistant service (http://www.ibm.com/watson/developercloud/assistant.html)
IBM.Watson.NaturalLanguageUnderstanding.v1 wraps the Watson Natural Language Understanding service (http://www.ibm.com/watson/developercloud/natural-language-understanding.html)
IBM.Watson.VisualRecognition.v3 wraps the Watson Visual Recognition service (http://www.ibm.com/watson/developercloud/visual-recognition.html)
IBM.Watson.ToneAnalyzer.v3 wraps the Watson Tone Analyzer service (http://www.ibm.com/watson/developercloud/tone-analyzer.html)
IBM.Watson.TextToSpeech.v1 wraps the Watson Text To Speech service (http://www.ibm.com/watson/developercloud/text-to-speech.html)
IBM.Watson.SpeechToText.v1 wraps the Watson Speech To Text service (http://www.ibm.com/watson/developercloud/speech-to-text.html)
IBM.Watson.PersonalityInsights.v3 wraps the Watson Personality Insights service (http://www.ibm.com/watson/developercloud/personality-insights.html)
IBM.Watson.NaturalLanguageClassifier.v1 wraps the Watson Natural Language Classifier service (http://www.ibm.com/watson/developercloud/natural-language-classifier.html)
IBM.Watson.LanguageTranslator.v3 wraps the Watson Language Translator service (http://www.ibm.com/watson/developercloud/language-translator.html)
IBM.Watson.Discovery.v1 wraps the Watson Discovery service (http://www.ibm.com/watson/developercloud/discovery.html)
IBM.Watson.Assistant.v1 wraps the Watson Assistant service (http://www.ibm.com/watson/developercloud/assistant.html)
Makes it easy to develop a .NET application that uses Azure Cognitive Search.
Microsoft Azure Management Cognitive Services Library
Use this package if you're developing automation in .NET to manage Azure Cognitive Search indexes, synonym maps, indexers, data sources, or other service-level resources. If you only need to query or update documents in your indexes, use the Microsoft.Azure.Search.Data package instead. If you need a...
Use this package if you're developing a .NET application using Azure Cognitive Search, and you only need to query or update documents in your indexes. If you also need to create or update indexes, synonym maps, or other service-level resources, use the Microsoft.Azure.Search package instead.
Common types needed by the Azure Cognitive Search .NET libraries. This is not the package you are looking for; It is only meant to be used as a dependency.
This client library provides access to the Microsoft Cognitive Services CustomVision Training APIs.