Top 20 NuGet rest Packages

Twilio REST API helper library
A fluent, portable, testable HTTP client library.
Authentication, in-game commerce, player data, title data, inventory, characters, statistics, leaderboards, analytics and reporting, friends, multiplayer, matchmaking, tournaments, cloud script, trading, real-time event handling, player management, live ops, and server hosting for all major platform...
Easy-to-use typesafe REST API client library, which is simple and customisable.
A .NET API for LogicMonitor
The DocuSign NuGet package makes integrating DocuSign into your apps and websites a super fast and painless process. The library is open sourced on GitHub, look for the docusign-csharp-client repository. Join the eSign revolution!
Chilkat .NET Core Class Library
This is the core support library for HL7's FHIR standard (http://hl7.org/fhir). It contains the core functionality to working with RESTful FHIR servers: POCO classes for FHIR, parsing/serialization of FHIR data and a FhirClient for easy access to FHIR servers.
ServiceStack is a simple and fast alternative to WCF, MVC and Web API in one cohesive framework for all your services and web apps that's intuitive and Easy to use! To get started see: https://servicestack.net/getting-started
Chilkat .NET Class Library (32-bit) for SSH/SFTP, FTP, CAdES, XAdES, REST, POP3, SMTP, IMAP, SSL/TLS, Zip, REST, OAuth2, HTTP, RSA, XML DSig, Encryption, Compression, XML, Socket, XMP, HTML to XML, JSON, JWT, OAuth1, conversion, PKCS12/PFX, Java Keystore, ASN.1, PEM, ECC, Async, ...
Client for the GoCardless API - a powerful, simple solution for the collection of recurring bank-to-bank payments
Simple.OData.Client is a multiplatform OData client library supporting .NET 4.x, .NET Standard, .NET Core, iOS and Android. The adapter provides a great alternative to WCF Data Services client. It does not require generation of context or entity classes and fits RESTful nature of OData services. ...
Simple.OData.V4.Client is a multiplatform OData client library supporting .NET 4.x, .NET Standard, .NET Core, iOS and Android. The adapter provides a great alternative to WCF Data Services client. It does not require generation of context or entity classes and fits RESTful nature of OData services. ...
A .NET SDK to make voice calls and send SMS using Plivo and to generate Plivo XML
Provides a set of services to be discovered by Swagger (http://swagger.io). Swagger is a specification and complete framework implementation for describing, producing, consuming, and visualizing RESTful web services.
Provides infrastructure for common error handling, tracing, configuration, and HTTP/REST-based pipeline manipulation for REST clients generated with Hyak.
ServiceStack is a simple and fast alternative to WCF, MVC and Web API in one cohesive framework for all your services and web apps that's intuitive and Easy to use! To get started see: https://servicestack.net/getting-started
This is the core support library for HL7's FHIR standard (http://hl7.org/fhir). It contains the core functionality to working with RESTful FHIR servers: POCO classes for FHIR, parsing/serialization of FHIR data and a FhirClient for easy access to FHIR servers.
.NET Client library for Microsoft Power BI public REST endpoints providing access to your Workspaces, Reports, Datasets and more.
Implements v2.0 of the Open API Specification (https://www.openapis.org). Open API is a specification and complete framework implementation for describing, producing, consuming, and visualizing RESTful web services.