Cryptocurrency arbitrage finder

This simple script will use APIs of popular cryptocurrency exchanges in order to find arbitrage opportunities.

Installation

First register for openexchangerates.org and write your API key in index.js (app_id).

Then run

npm install
node index.js

Example results

korbit vs kraken:
  BCH Buy on kraken for 561.6 sell on korbit for 582.17 and get 3.66% profit
  BTC Buy on kraken for 5983.8 sell on korbit for 6167.79 and get 3.07% profit
  ETH Buy on kraken for 323.32 sell on korbit for 334.54 and get 3.47% profit
korbit vs coinbase:
  BCH Buy on coinbase for 553.36 sell on korbit for 582.17 and get 5.21% profit
  BTC Buy on coinbase for 5896.94 sell on korbit for 6167.79 and get 4.59% profit
  ETH Buy on coinbase for 319.6 sell on korbit for 334.54 and get 4.67% profit
kraken vs coinbase:
  BCH Buy on coinbase for 553.36 sell on kraken for 561.60 and get 1.49% profit
  BTC Buy on coinbase for 5896.94 sell on kraken for 5983.80 and get 1.47% profit
  ETH Buy on coinbase for 319.6 sell on kraken for 323.32 and get 1.16% profit

Important: By default, this script writes out prices in EUR, not USD. It is trivial to change it in the source code.

Other exchanges

If you want to add another exchange, feel free to do so and I would love a pull request.

License

Don't worry about licenses, this is a simple piece of code. I give you all the rights you can dream of by using Unlicense. Enjoy your life and don't care about licenses for a while.

Author