Top 20 NuGet basecamp Packages

Enables you to use standard drivers to connect to Basecamp objects. Just specify your credentials and access tables like Projects, Calendars, Documents, etc.
https://raw.githubusercontent.com/nikkilocke/MattermostApi/master/README.md
ASP.NET Core security middleware enabling Basecamp authentication.
Used with SimpleAuthentication, this adds additional provider support: 1. GitHub 2. Amazon 3. 37 Signals 4. LinkedIn 5. OpenId.
C# Net Core 3 wrapper for the Basecamp API
New Basecamp API wrapper for .NET
Middleware for OWIN to implement Basecamp OAuth Autharization