The Shipping API:

Realizing Your Business Potential

Start shipping in a snap with one integration, get access to

multiple carriers, batch printing labels with built-in commerical

shipping rates and more.

  • Global Address Verification

    Global Address Verification

    Make sure the accurate, speedy

    deliveries and improve customer satisfaction.

    Reduce returns & postage expenses.

  • Multi-carrier Support

    Multi-carrier Support

    Eliminate multi-month integrations

    and access multiple carriers with

    just one simple API.

  • Batch Label Creation

    Batch Label Creation

    Make it simple and fast to create

    multiple labels. Be enable to create,

    add and remove shipments from a batch.

  • Built-in Deep Discounts

    Enterprised Shipping Rates

    Get started with Circle.us universal

    account to enjoy amazing commercial rates.

    No high volume or carrier accounts required.

  • Tracking and Rating APIs

    Tracking and Rating APIs

    Track and rate across all your carriers

    through our API.

  • Open & Extreme Developer-friendly

    Open & Developer-friendly

    Yes, our API is just open and free.

    Build and customize the powerful products

    and teams your own. We are developing

    the potential.