Ecosyste.ms: Packages
An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.
nuget.org "streets" keyword
smartystreets-csharp-sdk 2.0.1
A library to help .NET developers easily access the SmartyStreets APIs. Targets .NET 4.0.11 versions - Latest release: over 124 years ago - 18 stars on GitHub