Supabase Releases .NET SDK for C# Developers Across ASP.NET, Unity, and Mobile

Supabase has released a dedicated .NET software development kit (SDK), giving C# developers native access to the backend-as-a-service platform’s database, authentication, storage, and real-time features. The SDK, announced on October 26, 2026, targets multiple .NET environments including ASP.NET Core, console applications, desktop apps, Unity game development, and mobile projects.

The move expands Supabase’s ecosystem beyond its established JavaScript, Python, and Go clients, responding to growing demand from the .NET developer community. For teams using C# in enterprise environments, game development, or cross-platform mobile work, the SDK eliminates the need to write custom HTTP wrappers or manage REST calls manually.

Key facts
| Aspect | Details |
|——–|———|
| Release date | October 26, 2026 |
| Supported environments | ASP.NET Core, console apps, desktop, Unity, mobile (Xamarin/MAUI) |
| Core features covered | Database queries, authentication, real-time subscriptions, storage |
| Official resources | Supabase blog, GitHub repository, documentation |

What the .NET SDK includes

The SDK provides a client library that mirrors Supabase’s core services in idiomatic C#. Developers can initialize a Supabase client with their project URL and anon key, then use it to query PostgreSQL tables, manage user authentication sessions, listen to real-time database changes, and upload or retrieve files from storage buckets.

Supabase positions the SDK as production-ready for common .NET workflows. The library supports both synchronous and asynchronous patterns, integrates with dependency injection for ASP.NET Core, and includes Unity-specific optimizations for game loop performance. For mobile developers using .NET MAUI or Xamarin, the SDK handles token refresh and offline state management through Supabase’s built-in session handling.

Why this matters for .NET developers

The .NET ecosystem has historically relied on cloud backends from Microsoft Azure or third-party services with limited Supabase integration. For teams already using Supabase for its PostgreSQL foundation, open-source architecture, and real-time capabilities, the native C# client reduces boilerplate code and potential integration bugs.

Unity developers, in particular, gain a direct path to Supabase’s real-time multiplayer state and persistent storage without bridging through REST or WebSocket libraries. Enterprise .NET teams working on ASP.NET Core applications can now use Supabase as a drop-in backend with the same dependency injection patterns they already use for Entity Framework or SignalR.

The SDK also opens Supabase to Windows desktop and console applications, a segment often overlooked by cloud backend providers that prioritize web and mobile SDKs.

Limitations and considerations

The initial release focuses on core Supabase features but does not yet cover every edge service. Supabase Edge Functions, vector embeddings for AI workflows, and advanced row-level security configurations require additional manual setup. Developers relying on Supabase’s pg_graphQL or custom PostgREST endpoints may need to supplement the SDK with direct API calls.

The SDK’s documentation, while available on GitHub and the Supabase blog, is new. Community examples, NuGet package maturity, and third-party tutorials are still emerging. Teams evaluating the SDK for production workloads should test against their specific Supabase project configuration, particularly around real-time channel management and authentication flows.

How to get started

Developers can install the Supabase .NET SDK via NuGet. The setup requires a Supabase project URL and anon key, both available from the Supabase dashboard. The official blog post includes code examples for connecting to a database, authenticating users, and subscribing to real-time changes.

For Unity, the SDK requires the Newtonsoft.Json package and a compatible .NET API compatibility level. Mobile projects using .NET MAUI should verify their target framework against the SDK’s supported .NET versions.

Source: Supabase Blog – Getting started with the Supabase .NET SDK (https://supabase.com/blog/getting-started-with-the-supabase-dotnet-sdk)

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