One API. Every major carrier. Smarter shipping.

Connect to every major carrier through a single API and unlock real-time multicarrier rate shopping, discounted shipping options, and full-service flexibility. Our integrations empower your business to scale faster—optimizing fulfillment workflows, enhancing customer satisfaction, and maintaining complete control across your delivery stack.

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A multicarrier shipping strategy keeps your business agile, efficient, and protected.

Stay resilient, no matter what

Quickly shift volume to other carriers when delays or strikes hit.

Smarter comparisons, better decisions

Compare real-time rates across carriers to avoid pricing surprises.

Optimized delivery for every shipment

Access the best service options for every shipment — by size, weight, location, and delivery window.

More stability in an unpredictable market

Stay focused on your business while our API keeps rates and services up to date.

Select your plan and get started in minutes.

Free

$0/month

What's included:

Up to 3,000 labels per month free
Discounts up to 88%^*** off USPS shipping labels
Create labels and rate shopping
Pay on use returns
Track your shipments
Domestic address validation
Sandbox environment
Admin dashboard
Email support

Overage fees

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Enterprise

Custom pricing

What's available:

Bring your own carrier accounts
Volume discounts
Unlimited API calls
International address verification
Cross-border shipping APIs
Order management APIs
Business automation rules
Tracking webhooks
Certified with ERR
Analytics
Dedicated support, implementation and account managers
24/7 support

Talk to an expert

iOverage Fees: >3K Label Printing: $.05 per; >3K Tracking Only: $.02 per; >3K Address Validation Only: $.01 per; >3K Rate Only: $.02 per

See it in action -- integrate in minutes.

Wondering if this is right for your business? Register for our free developer sandbox and start testing multicarrier shipping, rate shopping, label creation, and tracking today. No long forms. No sales call required. No credit card required.

Ready to integrate and ship?

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Developers and businesses choose Pitney Bowes Shipping APIs

Lower shipping costs

Access discounted rates from FedEx, UPS, DHL, USPS

Improve operational flexibility

Automate smart carrier selection based on price, speed, zone, and service reliability.

Simplify and streamline your tech stack

Unified API for shipping, manifesting, tracking, address validation, and returns.

Track and manage every shipment

Real-time tracking from origin to delivery.

Test, build, and optimize faster

Immediate sandbox access with API keys and OAuth token generation.

Full-featured shipping

Create daily shipping manifests to speed carrier processing. Manage refunds and cancellations.

For the devs who like to ship—technically speaking

Whether you're integrating complex shipping logic or just exploring what's possible, our developer docs for Multicarrier and USPS APIs have you covered.

Multicarrier Shipping APIs USPS Shipping APIs

Why choose Pitney Bowes Shipping APIs