npm

fcm-node

A Node.JS simple interface to Google's Firebase Cloud Messaging (FCM). Supports both android and iOS, including topic messages, and parallel calls. Aditionally it also keeps the callback behavior for the new firebase messaging service.

2factor-auth

TOTP + HOTP library, aimed for communication between servers handing 2FA

node-pagseguro2

Integração PagSeguro UOL com checkout transparente para servidores backend