You are here RPC API - Source Code, a project from software developer Open Merchant Account Ltd, offers a suite of apps supporting the lookup of UK and Irish vehicle registration plate numbers. The API allows developers to integrate the site's registration lookup into websites and applications. This SOAP API provides access to the following data: ABI code, description, registration year, manufacture date range, make/model, current value, body style, engine size, number of doors, transmission, fuel type, make/model description, immobilizer, number of seats, indicative value, and side of steering wheel.