This SDK is PHP API integration that provides operations for Xero, that utilize code generated from the OpenAPI descriptions. It provides a way to access Xero accounting, assets, bank feeds, files and more. This code is generated from Xero OpenAPI descriptions and provides all the models for; PSR-7 request generation, and parsing of PSR-7 responses back to models. This library provides classes supporting all the API operations, and needs a PSR-18 HTTP client for its requests, one of which is suggested for Partner App support, but any alternative PSR-18 client can be used. Xero offers accounting software services.