USPS shipping integration

Optimize postal shipping with ShipWise's USPS integration. Access exclusive rates, print labels, and streamline mailing operations.

Preferred partner
Preferred service partner
Integration type
Documentation

Carrier information

Service types

Flat Rate
Priority
Flats
Envelope
First Class
Express
Letter
Return Service Enabled
MM
Lightweight
BPM

Special services

Carrier Insurance
Private
Delivery Confirmation
Adult Sig Restricted Delivery
Adult Signature Required
Certified Mail
Electronic Return Receipt
Special Handling - Fragile
Additional Handling
Perishable Goods
Restricted Delivery
Registered Mail
Return Receipt
Signature Required
Print Scan Return Label
Dangerous Goods Code
Address Correction Endorsement
Leave If No Response Endorsement
Return Service Endorsement
Hazmat
Freight
Hold For Pickup
Change Service Endorsement
Forwarding Service Endorsement

About USPS

The United States Postal Service (USPS) is the nation's primary postal service provider, offering a wide range of domestic and international shipping solutions. With a long-standing history of reliable mail delivery, USPS continues to innovate and adapt to meet the evolving needs of businesses and consumers in the digital age.

How the integration works

ShipWise leverages the latest USPS API to provide businesses with direct access to USPS services. As an early adopter of this advanced technology, we offer:

  • Immediate access to USPS services
  • Discounted USPS shipping rates
  • Real-time rate shopping and label generation
  • Seamless integration with your existing workflows

Our direct connection to USPS allows businesses to streamline shipping processes, reduce costs, and maintain the trusted reliability of USPS services. Whether you're handling a few packages a day or managing high-volume shipments, the ShipWise integration for USPS scales to meet your needs efficiently and cost-effectively.

Media
No items found.

Carrier services

To learn more, schedule a call to speak with one of our shipping experts.

Domestic
USPS Ground Advantage under 1LB
15.9999 oz
-

2-5 days

USPS First Class Flats
13 oz
-

1-5 days

USPS Priority Mail
1120 oz
-

1-3 days

USPS Express Mail
1120 oz
-

1-2 days

USPS Priority Flat Rate Envelope
1120 oz
-

1-3 days

USPS Express Flat Rate Envelope
1120 oz
-

1-2 days

USPS Priority Medium Flat Rate Box
1120 oz
-

1-3 days

USPS Priority Mail Cubic Pricing
1120 oz
-
USPS Ground Advantage Cubic Pricing
1120 oz
-
USPS Express Flat Rate Legal Envelope
1120 oz
-

1-2 days

USPS First Class Letter
3.5 oz
-

1-5 days

USPS Priority Large Flat Rate Box
1120 oz
-

1-3 days

USPS First Class Letter NM
3.5 oz
-
USPS Priority Small Flat Rate Box
1120 oz
-

1-3 days

USPS Priority Flat Rate Padded Envelope
1120 oz
-

1-3 days

USPS Priority Flat Rate Legal Envelope
1120 oz
-

1-3 days

USPS Express Medium Flat Rate Box
1120 oz
-
USPS Express Flat Rate Padded Envelope
1120 oz
-

1-2 days

USPS Priority Mail Large Flat Rate Game Board Box
1120 oz
-

1-3 days

USPS Ground Advantage
1120 oz
-

2-5 days

USPS Ground Return Service
1120 oz
-
USPS Media Mail
1120 oz
-

2-8 days

Bound Printed Matter
240 oz
-
Bound Printed Matter Presorted
240 oz
-
International
USPS First Class Mail Intl
64 oz
-

Varies by destination

USPS First Class Mail Intl Large Envelope (Flats)
64 oz
-

Varies by destination

USPS First Class Intl Letter
64 oz
-

Varies by destination

USPS Priority Mail Intl
1056 oz
-

Varies by destination

USPS Priority Mail Intl FlatRate Envelope
64 oz
-

Varies by destination

USPS Priority Mail Intl FlatRate Box
320 oz
-

Varies by destination

USPS Priority Mail Intl Large FlatRate Box
320 oz
-

Varies by destination

USPS Priority Mail Intl Small FlatRate Box
64 oz
-

Varies by destination

USPS Express Mail Intl
1056 oz
-

3-5 days

USPS Express Mail Intl FlatRate Envelope
64 oz
-

3-5 days

Learn more about the integration

To learn more about this integration, schedule a call to speak with one of our shipping experts.

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