Blockbook

Blockbook signet is an open-source Groestlcoin signet blockchain explorer with complete REST and websocket APIs that can be used for writing web wallets and other apps that need more advanced blockchain queries than provided by groestlcoind signet RPC. — Blockbook Signet REST API provides you with a convenient, powerful and simple way to read data from the groestlcoin signet network and build your own services with it.