Semaj's Gems

#	Total Rank	Daily Rank	Name	Summary
1	28,956	26,938	time-hash	Set a timeout on key-value pairs, at which point delete them.
2	62,416	60,028	bitcoin-money	Supports conversions and arithmetic.
3	93,428	21,943	blockchain-ruby	Convenient wrapper around public Blockchain.info API.
4	136,159	77,546	better-coinbase	The Coinbase API, wrapped, maintained, and better.