PHP SDK
for Peppol E-Invoicing
The official PHP SDK for e-invoice.be. Modern PHP 8+ support with Composer integration for Laravel, Symfony, and any PHP application.
composer require e-invoice/e-invoice-apiWhat is e-invoice.be?
e-invoice.be is a recognized Peppol Access Point and SMP operating under the Belgian Peppol Authority (BOSA). We enable businesses worldwide to send and receive electronic invoices via the Peppol network.
Our API lets you send invoices from JSON, upload pre-generated UBL XML, create invoices from PDF files, or integrate via our reseller programme. The PHP SDK makes integrating with our API seamless for any PHP application.
Instant Delivery
E-invoices delivered instantly via Peppol
Peppol Compliant
Automatic UBL BIS Billing 3.0 conversion
Real-time Validation
Validate invoices before sending
Quick Start
Get up and running in minutes with our PHP SDK.
1. Install the SDK
composer require e-invoice/e-invoice-api
2. Usage
<?php
use EInvoiceAPI\Client;
$client = new Client(apiKey: getenv('E_INVOICE_API_KEY'));
$documentResponse = $client->documents->create();
echo $documentResponse->id;Features
PHP 8+ Support
Modern PHP with constructor property promotion, named arguments, and union types.
PSR-4 Autoloading
Follows PHP-FIG standards for autoloading. Works seamlessly with Composer and any framework.
Guzzle HTTP Client
Uses Guzzle for reliable HTTP requests with connection pooling, retries, and timeout handling.
Auto-retry with Backoff
Automatic retry logic with exponential backoff for transient failures. Configurable retry strategies.
Exception Handling
Typed exceptions for different error scenarios. Easily catch and handle validation, auth, and network errors.
Framework Agnostic
Works with Laravel, Symfony, Slim, or plain PHP. No framework dependencies required.
Start integrating today
Get your API key and start sending e-invoices in minutes. Our documentation has everything you need to get started.