Opensources

Monacoin core

core and qt.

Insight

Blockchain expolorer.

Electrum

Thin client

ElectrumX

Alternative implementation of spesmilo/electrum-server

Eclair

A scala implementation of the Lightning Network (fixed for Monacoin mainnet).

Closed-source / Open APIs

Multi Light Block Explorer

Blockchain explorer.

AskMona

Bulletin board system.

Monappy

Web wallet, Content market, and so on.

Zaif

Currency exchange.

Bitbank.cc

Currency exchange.