RateShip
Three shipping providers, one API you only have to learn once.
The problem
Every shipping provider models the same three things differently: what a rate is, what a label is, and how they tell you something changed.
Swapping providers, or running two at once for redundancy, usually means rewriting the integration and re-verifying every webhook signature by hand.
The approach
RateShip normalizes rates, labels and webhook verification into one typed surface. Providers are adapters, so adding or replacing one is a config change.
It ships with no runtime dependencies, so it drops into a serverless function without dragging half of npm along with it.
The whole surface
Providers are adapters
Outcome
Teams can price against three carriers at checkout and switch defaults without touching product code. The typed surface means a bad field is a compile error, not a support ticket.