Allows to generate shipping labels and to perform some of the Endicia basic operations.

A general shipping module to find out the shipping prices via UPS or FedEx

UPS shipping gem for integrating UPS's API into a Ruby script.

Client to access packlink.com shipping API

Allows advanced calculators such as weight etc to be applied on shipping methods

Ruby wrapper around Auction Inc's shipping API.

Rails 3 Engine for calculating shipping rates initially supporting UK Royal Mail

Free shipping in Piggybak, depending on a product / sellable method as defined in the configuration.

Get link for shipping tracking using tracking number

A class to get values and tracking info from shipping providers

Provides an interface to get shipping rates and transit time for Fedex, UPS, and USPS

Library that scrapes rates from various Indonesian shipping carriers web 1.0 sites.

correios-ws uses correios web-services SOAP to calculate shipping

Slipmate is a web based order fulfillment application that gives you control over advanced order routing and shipping.

Extendable Ruby on Rails engine for adding shopping cart functionality to a Rails application. It does not assume shipping, price, or having a quantity. However, it does allow for more than one order per user placed in a trolley. Meant to be well suited to ordering digital records.

A Solidus shipping costs calculator based on total order weight

Gem for spree and brazilian carrier correios

This gem provides a basic shipping calculator for PostNL packages and letters to be send within the Netherlands

A library containing shipping fee data of three major shipping companies in Japan.

at amazon.co.jp, as any product, can get lowest price, shop name, shipping price...etc