RbtcArbitrage

A Ruby gem for executing arbitrage between different Bitcoin exchanges. Supports:

• Bitstamp
• CampBX
• BTC-E
• Coinbase
• MtGox(deprecated)

Meta

Please contribute with code! There are always new exchanges that could be easily supported. Check out thecontribution guidelines for instructions. Earn Bitcoin for every commit:

• Explanation of bitcoin arbitrage
• Why I open sourced a bitcoin arbitrate bot
• I made a course aboutusing this to run your own arbitrage bot.
• CHANGELOG.

Donations accepted:16BMcqf93eEpb2aWgMkJCSQQH85WzrpbdZ

Installation

Install it yourself as:

$ gem install rbtc_arbitrage

Usage

After installing the gem, simply runrbtcin the command line.

Options

• Live:whether you want to actually execute trades. See the 'Environment Variable' section for the required keys.
• Cutoff:the minimum profit percentage required to execute a trade. Defaults to%2.00.
• Volume:The amount of bitcoins to trade per transaction. Defaults to0.01(the minimum transaction size).
• Buyer:The exchange you'd like to buy bitcoins from during arbitrage. Default isbitstamp
• Seller:The exchange you'd like to sell bitcoins from during arbitrage. Default iscampbx

Valid exchanges for the--buyerand--selleroption arebitstamp,campbx, btce,andcoinbase.

Examples

$ rbtc --live --cutoff 4
$ rbtc --cutoff 0.5
$ rbtc --cutoff 3 --volume 0.05
$ rbtc --seller bitstamp --buyer campbx
$ rbtc

The output will look like this:

I, [APR 6 2014 7:14:33 AM -0700#52261] INFO --: Fetching exchange rates
I, [APR 6 2014 7:14:37 AM -0700#52261] INFO --: Bitstamp (Ask): $455.0
I, [APR 6 2014 7:14:37 AM -0700#52261] INFO --: Campbx (Bid): $455.05
I, [APR 6 2014 7:14:37 AM -0700#52261] INFO --: buying 0.01 btc at Bitstamp for $4.58
I, [APR 6 2014 7:14:37 AM -0700#52261] INFO --: selling 0.01 btc at Campbx for $4.52
I, [APR 6 2014 7:14:37 AM -0700#52261] INFO --: profit: $-0.05 (-1.18%) is below cutoff of 2%.

Environment Variables

You will need to configure the following environment variables to trade with real accounts.

BitstampClient

• BITSTAMP_KEY
• BITSTAMP_SECRET
• BITSTAMP_ADDRESS
• BITSTAMP_CLIENT_ID

CampbxClient

• CAMPBX_KEY
• CAMPBX_SECRET

BtceClient

• BTCE_KEY
• BTCE_SECRET
• BTCE_ADDRESS

CoinbaseClient

• COI NBA SE_KEY
• COI NBA SE_SECRET

Exchange Adapters

rbtc_arbtitragealso exposes a handy interface for interacting with different bitcoin clients. For example:

client=RbtcArbitrage::Clients::BitstampClient.new
client.price:buy
=>462.88
client.price:sell
=>462.88
client.balance
=>[0.0079,1.41]# [btc, usd]
client.options[:volume]=0.5# default is 0.01
# client.trade uses market price
client.trade:buy
client.trade:sell
client.address# for deposits
=>"16rQQYMTTKb9cnnSX3xYkN4hcKXoYcXXXX"
# send btc to an address
coinbase=RbtcArbitrage::Clients::CoinbaseClient.new
client.transfercoinbase.address

License

Available here