Plugin (PLI) is a de-centric Xinfin ecosystem The data going in and out is of good quality. Plug-ins ensure that data from the outside world is reliable. Plugin solves three major problems compared with other Oracle service providers, such as "high Gas Fee", "complex node setup" and unclear "carrot stick model". It is very important that the data stored on the blockchain be of high quality, and this can only be achieved through decentralized computing.