The XSN Block Explorer (https://xsnexplorer.io/) is composed by several sub projects:
The server is a backend service that interacts with the xsnd (RPC server) to provide a RESTful API for retrieving information from the blockchain, it also maps the blockchain to a relational database to support several operations that otherwise would kill the application performance.
The web-ui is the frontend application that interacts with the server project to display the data in a browser.
The infra project contains all stuff related to the required infrastructure, like deployment steps and hopefully deployment scripts (TODO).
See the api_docs.
We are happy to accept contributions, please read the CONTRIBUTING.md file to see our rules.