Introduction

Welcome to the Apaczka developer documentation. The Apaczka API v2 lets you price, create and manage courier shipments across 20+ carriers through a single integration.

How the API works

API v2 is an RPC-style API: every call is an HTTP POST carrying a form-encoded envelope signed with HMAC-SHA256, and every response comes back as HTTP 200 — the real outcome is in the response body. Start with Request signing and Error semantics, then browse the full API v2 reference.

Getting started

1. Get API credentials in the Apaczka panel under Settings → API.
2. Follow the Quick start.
3. Explore the integration guides for the full order lifecycle.

SDK — the recommended way to integrate

The official AlsendoOne SDK for PHP (alsendo/alsendo-one-sdk, source on GitHub) is the preferred way to integrate: it handles request signing and error mapping, and exposes every API method through typed objects. Start with the PHP SDK guide. Integrations in other languages call the API directly — see Request signing (HMAC).