eckey
Handle private key and public keys associated with elliptic curve cryptography. Used with crypto currencies such as Bitcoin, Litecoin, Dogecoin, etc. Works in both Node.js and the browser.
ccxt
A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 100+ exchanges
ccxt-ir
A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 100+ exchanges