Go SDK for Invoice Ninja API - payments, invoices, clients, webhooks with retry & rate limiting
PHP Client library for Exact Online
SDK oficial de fiscalapi para consumo desde aplicaciones php
Official PHP SDK for QuickBooks REST API v3.0: https://developer.intuit.com/
Invoice Ninja CLI: Install, configure, update, backup, monitor, and receive notifications for your self-hosted ...
Неофициальный php API клиент lknpd.nalog.ru ("Мой Налог")
MoySklad (МойСклад) PHP SDK для JSON API 1.2
Interface for ΑΑΔΕ myDATA invoicing REST API. It handles all the boilerplate code for sending, cancelling and requesting invoices.