For this Communities Information - NYAN is going to be listed free of charge on https://emblemvault.com/ 's DEX, due to be released very soon.

https://coinscribble.com/emblem-vault-announces-support-for-more-than-500-cryptocurrencies/2085/releases/34/

https://github.com/DecentricCorp/coininfoplus/blob/master/lib/alts.js

for more information have a look at our Bitcointalk page https://bitcointalk.org/index.php?topic=1652345.0