aspnet-api-versioning - Provides a set of libraries which add service API versioning to ASP

•    CSharp

ASP.NET API versioning gives you a powerful, but easy-to-use method for adding API versioning semantics to your new and existing REST services built with ASP.NET. The API versioning extensions define simple metadata attributes and conventions that you use to describe which API versions are implemented by your services. You don't need to learn any new routing concepts or change the way you implement your services in ASP.NET today. The default API versioning configuration is compliant with the versioning semantics outlined by the Microsoft REST Guidelines. There are also a number of customization and extension points available to support transitioning services that may not have supported API versioning in the past or supported API versioning with semantics that are different from the Microsoft REST versioning guidelines.

aspnet-api-versioning - Provides a set of libraries which add service API versioning to ASP

•    CSharp

ASP.NET API versioning gives you a powerful, but easy-to-use method for adding API versioning semantics to your new and existing REST services built with ASP.NET. The API versioning extensions define simple metadata attributes and conventions that you use to describe which API versions are implemented by your services. You don't need to learn any new routing concepts or change the way you implement your services in ASP.NET today.The default API versioning configuration is compliant with the versioning semantics outlined by the Microsoft REST Guidelines. There are also a number of customization and extension points available to support transitioning services that may not have supported API versioning in the past or supported API versioning with semantics that are different from the Microsoft REST versioning guidelines.

Apache Olingo - Java library that implements the Open Data Protocol

•    Java

Apache Olingo is a Java library that implements the Open Data Protocol (OData). Apache Olingo serves client and server aspects of OData. It currently supports OData 2.0 and will also support OData 4.0. The latter is the OASIS version of the protocol.

RESTier - A turn-key library for building RESTful services

•    CSharp

RESTier is a RESTful API development framework for building standardized, OData V4 based RESTful services on .NET platform. It can be seen as a middle-ware on top of Web API OData. RESTier provides facilities to bootstrap an OData service like what WCF Data Services (which is sunset) does, beside this, it supports to add business logic in several simple steps, has flexibility and easy customization like what Web API OData do.

Linq2Rest

•    LINQ

Parses OData system query parameters to create a LINQ query that can be used to filter a model set. Also exposes a LINQ provider for web services supporting the OData query parameters. Use extension method Filter (in Linq2Rest namespace) on any IEnumerable source.

CrmRestKit.js

•    Javascript

CrmRestKit based on the idea of the CrmServiceToolkit (Daniel Cai) and provides basic CRUD operations for the Dynamcis CRM 2011 REST web-services.

eXpress Persistent Objects (XPO) Toolkit

eXpress Persistent Objects (XPO) Toolkit provides extensions to the DevExpress Object-Relational Mapping Suite.

JayData -The unified data access library for JavaScript

•    Javascript

JayData helps HTML5 data management with JavaScript in web applications and cross-platform hybrid mobile apps. OData,WebSQL,SQLite,IndexedDB,MongoDb,Nodejs

OData Viewer Tool

•    ASPNET

I build this tool to help me build OData URL query and to see the result. ( for example http://e4d.com/Courses.svc/Courses?$orderby=Date/ ) Please send feedback...

Silverlight DataGridToolbar Control for OData, RIA Services and local data

The library contains three controls for Silverlight DataGrid. The first control works with OData(WCF Data Services), the second one works with RIA Services and the third one works with local data. It can be used to filter, remove, edit and insert data.

Knockout binders for SharePoint 2013 and 2010 REST API and SP Services

Knockout binder extensions for SharePoint 2013 and SharePoint 2010 Rest API and SP Services

SPA Tools

•    Javascript

SPA Tools is an open-source set of tools which help creating some beautiful and responsive Single Page Applications.

CRUD Services

Provides a single generic CRUD service that can handle CRUD operations for any entity. Includes wrappers for supporting backend frameworks like Entity Framework and Linq-To-Sql, as well as for communication stacks like WCF and ASP.NET Web API.

Rx Heat

•    DotNet

Rx Heat is a library of helper classes that complements the Reactive Extensions Library with additional features.

CRM 2011 OData Query Designer

The CRM 2011 OData Query Designer allows you to build and exexcute OData REST queries by selecting filter criteria, select attributes and order by attributes.

OData Client for Objective-C

The library is designed to facilitate the connection with data services that use the OData protocol. The library can be used on iOS devices and MacOS.

Generic Queryable Data Repository

•    CSharp

This is a .Net generic queryable repository that can be used in a variety of projects - most easily used with Entity Framework Database First.

Silverlight Data Source Control for OData

The control extends OData proxy class and cooperates with others Silverlight GUI controls. The control supports master-detail, paging, filtering, sorting, validation, changing data. You can append your validation rules. It works like a Data Source Control for RIA Services.

OData PowerShell Provider

The OData PowerShell Provider allows PowerShell to interact with OData feeds as if they are drives on your system.

datajs - JavaScript Library for data-centric web applications

•    Javascript

datajs is a new cross-browser JavaScript library that enables data-centric web applications by leveraging modern protocols such as JSON and OData and HTML5-enabled browser features. It's designed to be small, fast and easy to use.