API Documentation
Developer Documentation
Everything you need to convert ZPL labels programmatically. Authentication, endpoints, examples, and more.
Getting Started
Zentralabel provides a REST API for converting ZPL (Zebra Programming Language) labels into PDF, PNG, and SVG files programmatically. This guide will walk you through the basics.
API Access requires Vendor plan or higher
API keys can be generated from your Dashboard → API Keys page. You need at least the Vendor plan to access the API.
Quick Start — 3 Steps
1
Get your API key
Navigate to Dashboard → API Keys and click "Create Secret Key". Save it securely — you won't see it again.
2
Make your first request
Send a POST request to /api/v1/convert with your ZPL content and desired output format.
3
Download your label
The API returns the converted label as a binary file (PDF, PNG, or SVG). Save it and print.
Base URL
base-url
https://api.zentralabel.com
For local development, use http://localhost:8080