Multi-protocol API workbench for .NET — discover, invoke, record, mock, replay across gRPC, REST, GraphQL, MQTT, SignalR, WebSocket, SSE, MCP, OData, Socket.IO, and more... including your custom protocol.
Build real-time Blazor and MAUI apps while writing just 0.1% of the usual real-time update code. Handle 10× more API requests with the ActualLab.Rpc protocol—or 1000× more with Fusion’s transparent and perfectly coherent caching.
C#/.NET Roslyn analyzer with 36 diagnostics and code fixes for CancellationToken propagation, async/await, ASP.NET Core, EF Core, HttpClient, gRPC, blocking I/O, and sync-over-async.
Result pattern for .NET that replaces exceptions with type-safe return values. Features railway-oriented programming, ASP.NET Core integration, RFC 7807 Problem Details, and built-in pagination. Designed for production systems requiring explicit error handling without the overhead of throwing exceptions.
Orleans.SignalR is a lightweight, open-source library that enables easy integration of SignalR with Orleans, a distributed virtual actor model framework for building scalable, fault-tolerant systems. The library provides a SignalR backplane, allowing you to effortlessly add real-time communication capabilities to your distributed systems.