GSO Rates & Pricing

with EasyPost

GSO Shipping API made simple

Using EasyPost's simple Shipping API, you can ship with GSO and dozens of others with a single point of integration.

Modern shipping features

The EasyPost Shipping API boasts a full suite of features to make shipping easy. With our Shipping API, you can:

Connect with any number of our 100+ carriers on the same day.
Rate shop amongst dozens of carriers to find the right rate for each shipment.
Leverage our API for scan-based returns and return labels.
Insert customs information easily into each international shipment.
Purchase and print labels in bulk with our Batches feature.

Build the shipping infrastructure of the internet

Integrate with EasyPost and gain access to the most complete and easy-to-use Shipping API

Take a look at our public documentation and start building with one of our helper libraries (Python, PHP, Ruby, Node.js, Java, and more). Avoid month-long integrations and start shipping in minutes with EasyPost.

Get Started For Free

Tracking Packages

Track packages across all major carriers.

Learn more

Address Verification

Validate domestic and international addresses.

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International & Customs

Learn how to handle international shipping seamlessly.

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Shipping Insurance

Shipping insurance for all items sent with EasyPost.

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EasyPost: Built for developers

USPS Commercial Pricing on ALL accounts
Instant Access to USPS, UPS, FedEx, and DHL & more
Try EasyPost for FREE, No Upfront Costs
Client Libraries for .Net, Java, Ruby, Python, Node, PHP, and Go
Millions of packages shipped each month using EasyPost!

import easypost
import os

client = easypost.EasyPostClient(os.getenv("EASYPOST_API_KEY"))

shipment = client.shipment.create(
    to_address={"id": "adr_..."},
    from_address={"id": "adr_..."},
    parcel={
        "predefined_package": "Parcel",
        "weight": 32.8,
    },
)

client.shipment.buy(
    shipment.id,
    rate=shipment.lowest_rate(),
)

Leading companies rely on EasyPost

QALO

QALO uses EasyPost's API to automate their returns for an unbeatable customer experience.

Read their story

EP&V

With EasyPost's API, Expedited Passports & Visas cut their operational load in half.

Read their story

Casper

Casper sped up their European launch thanks to EasyPost's support of over 30+ European carriers.

Read their story

Connect to EasyPost today

Sign up and start shipping in the same day. We have our GSO API live and ready for you to test with. We also have extensive client documentation in over six different languages to help you get started. If you have any questions, or if you want to talk logistics, feel free to reach out to one of our shipping experts.