# OR Middle Mile Optimization API

The Middle Mile Optimization API is a Google Operations Research service that
exposes a stateful solver catering to needs in middle-mile logistics. This
solver runs on Google's infrastructure and can be consumed as a REST API or
through [gRPC](https://grpc.io/).

In logistics, the middle mile is the part of the chain that moves goods from one
warehouse (also called distribution center) to another. Companies operating in
the middle mile typically refer to their services as FTL (full truckload) or LTL
(less-than-truckload).

The first and last miles are concerned with the pickup and delivery of goods to
their final customers, typically using smaller trucks. Companies in this segment
might find that the [Route Optimization API](https://developers.google.com/maps/documentation/route-optimization) is a good fit for their needs.

## Limitations on usage

The solver is only available to selected partners under a Trusted Tester
Agreement. It is in Alpha [stability level](https://google.aip.dev/181) and is not suited for production
needs.