Whilst ServiceStack v4 is a commercially-supported product, we also allow free usage for small projects and evaluation purposes.
The NuGet packages above include the quota's below which can be unlocked with a license key:
10 Operations in ServiceStack (i.e. Request DTOs)
10 Tables in OrmLite
20 Different Types in JSON, JSV and CSV Serializers *
20 Different Types in Redis Client Typed APIs
6000 requests per hour with the Redis Client