Karrio – Open-Source Multi-Carrier Shipping API

In plain words

Karrio is an open-source shipping API that enables developers to integrate shipping functionality into platforms. It provides connections to a global network of carriers for national, international, and last-mile delivery, while also supporting custom local carrier networks. Users can fetch live rates, purchase shipping labels, and track packages through a universal API. The platform serves as an alternative to building shipping systems in-house or relying on proprietary SaaS solutions.

written from the facts on this page · September 2026

From the sources

Programmable Shipping APIs (self-hosted). Contribute to karrioapi/karrio development by creating an account on GitHub.

In the maker’s words, at launch

Hey HN! Daniel and Delali here; we are working on Karrio, an open-source shipping infrastructure. Our focus is on making it easy to integrate shipping into platforms. With Karrio’s open-source and universal shipping API, you can set up connections to a worldwide network of shipping carriers for national…

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