C# REST

Open-source C# projects categorized as REST
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Top 19 C# REST Projects

REST

  1. modular-monolith-with-ddd

    Full Modular Monolith application with Domain-Driven Design approach.

  2. Stream

    Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

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  3. sample-dotnet-core-cqrs-api

    Sample .NET Core REST API CQRS implementation with raw SQL and DDD using Clean Architecture.

  4. data-api-builder

    Data API builder provides modern REST and GraphQL endpoints to your Azure Databases and on-prem stores.

    Project mention: Directus – real-time REST and GraphQL API of any SQL database | news.ycombinator.com | 2025-02-23

    That looks really interesting, but maybe only useful for mssql? [1]

    [1] https://github.com/azure/data-api-builder/labels/known-issue

  5. Grid.Blazor

    Grid component with CRUD for Blazor (client-side and server-side) and ASP.NET Core MVC

  6. dev-proxy

    Simulate API failures, throttling, and chaos — all from your command line.

  7. api-bricks-sdk

    SDKs for CoinAPI & FinFeedAPI

    Project mention: Pull Real-Time SEC Filings and Stock Data in Python (and Analyze It With AI!) | dev.to | 2025-06-25

    API Bricks SDK GitHub

  8. RestClient.Net

    .NET REST Client Framework for all platforms

  9. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo

  10. Remora.Discord

    A data-oriented C# Discord library, focused on high-performance concurrency and robust design.

  11. GenHTTP

    Lightweight web server written in pure C# with few dependencies to 3rd-party libraries.

    Project mention: GenHTTP VS ASP.NET Core - a user suggested alternative | libhunt.com/r/GenHTTP | 2024-12-05

  12. stream-chat-net

    Stream Chat official .NET API Client

  13. RESTful-Unity

    RESTful-Unity aims to provides a simple RESTful HTTP server for Unity3d.

  14. ably-dotnet

    .NET, MAUI, Xamarin, Mono and Unity client library SDK for Ably realtime messaging service

  15. Reprise

    A micro-framework that brings the REPR pattern into ASP.NET Core Minimal APIs. (by yavorfingarov)

  16. NpgsqlRest

    Automatic REST API for PostgreSQL Database as .NET Middleware

  17. nanoFramework.WebServer

    :package: Web server for .NET nanoFramework packed with features: REST api using attributes, multithread requests, parameters in query URL, static files serving.

  18. DotnetAspireChallenge

    10 Day .Net Aspire Challenge

    Project mention: 10-Day .Net Aspire Challenge: Day 4— Add Oracle Component | dev.to | 2024-08-31

    Github Sample: The solution structure is divided into the following projects

  19. mflix

    A showcase of how to build API's (REST, gRPC, GraphQL) using C# .NET

  20. ApiLibs

    An easily extendable restclient library for csharp

  21. AzureDotNet

    Simplified Azure Storage Client in .NET Core

  22. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

C# REST discussion

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C# REST related posts

  • Data API builder: modern REST, GraphQL endpoints to Databases and on-prem stores

    1 project | news.ycombinator.com | 5 Dec 2024

  • .NET Aspire for Data Chatting

    2 projects | dev.to | 19 Sep 2024

  • Data API Builder for Azure Databases

    1 project | news.ycombinator.com | 15 May 2024

  • FastEndpoints has reached v5.0 after 1 year of development [107k downloads / 1.9k gh stars / 1.1k commits]

    2 projects | /r/dotnet | 24 Aug 2022

  • FastEndpoints – API Framework for Asp.net Using the REPR Pattern

    1 project | news.ycombinator.com | 29 Jun 2022

  • FastEndpoints template

    2 projects | /r/dotnet | 21 Jun 2022

  • 6 .NET Myths Dispelled — Celebrating 21 Years of .NET

    2 projects | /r/programming | 3 Mar 2022
  • A note from our sponsor - SaaSHub
    www.saashub.com | 15 Jul 2025
    SaaSHub helps you find the best software and product alternatives Learn more →

Index

What are some of the best open-source REST projects in C#? This list will help you:

# Project Stars
1 modular-monolith-with-ddd 12,168
2 sample-dotnet-core-cqrs-api 2,984
3 data-api-builder 1,115
4 Grid.Blazor 725
5 dev-proxy 673
6 api-bricks-sdk 510
7 RestClient.Net 363
8 Remora.Discord 252
9 GenHTTP 228
10 stream-chat-net 68
11 RESTful-Unity 62
12 ably-dotnet 47
13 Reprise 43
14 NpgsqlRest 40
15 nanoFramework.WebServer 36
16 DotnetAspireChallenge 14
17 mflix 13
18 ApiLibs 4
19 AzureDotNet 3

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