Sinch Functions — C#/.NET Runtime

Overview

Sinch Functions is in beta: free during the beta period, and the API may change before general availability.

Package: Sinch.Functions.Runtime (NuGet). Write C# functions using ASP.NET controller patterns with dependency injection, answering phone calls, handling conversation webhooks, and serving custom HTTP endpoints.

Voice API v2 is what Context.Voice is and what a new function is written against. The unversioned name always means the current API: Context.Voice is SinchFunctions.Voice.V2.Client, and the v1 client is Context.Voice.V1. The v2 sections below lead this skill because developers.sinch.com does not yet have a Functions-on-v2 page. Voice v1 is still supported and is covered in a section at the end.

Related skills:

• sinch-functions — platform overview, concepts, runtime choice
• sinch-cli — terminal commands (sinch functions dev, sinch functions deploy, etc.)
• sinch-voice-api-v2 — the Voice API v2 REST contract, SVAML v2 commands, and service configuration
• sinch-functions-node — the same concepts in Node.js/TypeScript

Agent Instructions