Shops#

Shop integrations

One API, any storefront

Karla meets your shop wherever it lives. Native integrations for Shopify, Shopware, and WooCommerce cover 95% of merchants in a few clicks — and a clean public API lets the other 5% build whatever they want.

How the integration works#

Karla is the post-purchase layer on top of your storefront. Your shop is the source of truth for orders; Karla is the source of truth for the journey after the order is placed — shipments, carrier events, tracking pages, notifications, resolution flows.

The integration is deliberately boring:

Your shop sends us orders as they're created, updated, or cancelled.
Your shop (or your WMS) sends us shipments with a tracking number and carrier.
Karla takes over from there — polling the carrier, normalizing statuses, powering the tracking page, triggering notifications, surfacing anomalies for resolution.

That's it. No heavy middleware, no data lake, no re-architecting your stack.

What we pull from your shop#

Order data

Order number, totals, line items, fulfillment status, currency, and customer-facing metadata.

Customer profile

Name, email, phone (if available), locale preference, and shipping address — only what we need to personalize tracking pages and messages.

Shipments & tracking

Tracking number(s), carrier identifier, fulfillment line-items. Karla handles the rest — carrier polling, status normalization, ETA.

Real-time updates

Webhooks for creation, update, and cancellation. We only ingest what changes — no bulk syncing, no nightly jobs.

Pick your path#

Most merchants plug Karla in via one of our native integrations — pick the one that matches your storefront and follow the step-by-step setup.

For teams who want to ship something custom — a proprietary tracking experience, a mobile app, an agent that surfaces shipment state in Slack — Karla is also a pure API. Skip the plugins, call the endpoints directly, and build on top.

Build your own: Karla as a platform#

If you can write code, you can build on Karla. Every integration in this section is a thin layer over the same public API — there's nothing Shopify-specific or Shopware-specific under the hood.

That means you can:

Power a custom tracking page on your own domain, styled exactly the way you want.
Embed shipment state into your mobile app, an internal dashboard, or a Slack channel.
Orchestrate automations off of Karla events — send an email when a shipment stalls, trigger a refund flow on a failed delivery.
Wire Karla into an AI agent that handles "where is my order?" without a human ever touching it.

We built Karla to be headless-first — every UI we ship (tracking page, portal, resolve) is just a reference implementation on top of the same API you have access to. If you'd rather design your own experience, the Headless guide walks through the full data model and the endpoints you'll need.

Where to next#

Got a Shopify store? Start with Shopify.
On Shopware? Follow the Shopware setup.
Running WooCommerce? Set up webhooks in WooCommerce — no plugin required.
Building your own storefront or going fully headless? Headless is where you want to be.