usps

Programmable Shipping APIs (self-hosted)

Identifies valid tracking numbers and a little bit more

Shipping API PHP library (USPS, FedEx, UPS and more)

Shipping API Node.js library (USPS, FedEx, UPS and more)

delivery tracking library for Node.js

Shipping API Python library (USPS, FedEx, UPS and more)

A Ruby gem to assist with collecting and formatting international addresses

A small tool to track your US plain letter

Shipping API Ruby library (USPS, FedEx, UPS and more)

Shipping API Java library (USPS, FedEx, UPS and more)

Python Wrapper for the USPS API 🚚 📦

Converts package tracking numbers into URLs (UPS, FedEx, USPS, and more)

Shipping API C# library (USPS, FedEx, UPS and more)

.NET wrapper for UPS, FedEx, USPS and DHL shipping rate APIs

Kargo determines the carrier of a tracking number barcode and checks if that tracking number is valid

A simple way to validate tracking number for the following couriers.

✨ A flexible shipment tracking library for multi carriers like DHL eCommerce, USPS, YanWen Express, Epacket, E包裹, E特快, 国际EMS, 快递100,递四方 etc.

Argo Shipping Utility

A repository for HackforLA's BallotNav project