1

Different coins have their own blocks and wallets, I want to build application to support multiple coins and my questions is Monitoring all coins possible(view transactions, get balance etc)?

2

You would need to install all of the coin daemons and scrape them for transactions using something like Abe, or your own custom solution using RPC commands.

If you are able to find an API which provides this information (I have yet to find one with a good amount of coins and reliable), then you could simply make calls to that; the only problem with using an API is that you are dependent on them and if they go offline, so do you.

My recommendation, get a VPS and start installing some coins :)

  • How much space(approx) is needed for single coin daemon? – Jsd Apr 3 '14 at 5:21
  • 1
    It depends how big the block chain. New coins can be a few hundred MB, with many older coins in the low single digit GB range. Bitcoin and Namecoin are over 10 GB each. I would recommend keeping a fair amount of space so you don't need to install coins on a new system too soon. CPU is not so important for a coin once it catches up, but be sure not to start too many coins at once! – Mark Apr 3 '14 at 18:49
  • Is it possible to explore blockchains without downloading them? – jayarjo Oct 11 '17 at 9:05

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