System.Xml.XmlSerializer by: Microsoft

Provides classes for serializing objects to the Extensible Markup Language (XML) and deserializing XML data to objects. Commonly Used Types: System.Xml.Serialization.IXmlSerializable System.Xml.Serialization.XmlSerializer System.Xml.Serialization.XmlIgnoreAttribute System.Xml.Serialization.XmlElementAttribute System.Xml.Serialization.XmlAttributeAttribute System.Xml.Serialization.XmlArrayAttribute System.Xml.Serialization.XmlRootAttribute System.Xml.Serialization.XmlArrayItemAttribute System.Xml.Serialization.XmlTypeAttribute System.Xml.Serialization.XmlEnumAttribute

Twilio by: Twilio

Twilio REST API helper library

WindowsAzure.Storage by: Microsoft

This client library enables working with the Windows Azure storage services which include the blob service for storing binary and text data, the table service for storing structured non-relational data, and the queue service for storing messages that may be accessed by a client. For this release see notes - http://msdn.microsoft.com/en-us/library/windowsazure/jj721952.aspx Windows Azure Storage team's blog - http://blogs.msdn.com/b/windowsazurestorage/

Xamarin.Build.Download by: Xamarin Inc.

Support for downloading and unpacking archives at when building MSBuild projects

Xamarin.Essentials by: Microsoft

Xamarin.Essentials: a kit of essential API's for your apps

Xamarin.Firebase.iOS.Core by: Microsoft

C# bindings for Firebase APIs Core iOS Library

Xamarin.Firebase.iOS.Crashlytics by: Microsoft

C# bindings for Firebase APIs Crashlytics iOS Library

Xamarin.Firebase.iOS.DynamicLinks by: Xamarin Inc.

C# bindings for Firebase APIs Dynamic Links iOS Library

Xamarin.Firebase.iOS.RemoteConfig by: Xamarin Inc.

C# bindings for Firebase APIs Remote Config iOS Library