I have been given an api key, I would like to call the above url every second to count the number of tx in real-time.
I don't think that this though is the best way to do this as the data might be delayed by the response time and I don't like the idea of calling them that often (I would count that as sort-of abuse of service, though I don't know for sure). Also in a call I would have to filter out any tx with the same id that may have been listed in the previous call.
I would prefer to get a list showing all unconfirmed, and to not miss any at all, to see them as they happen.
I was looking at the bitcoind rpc call 'listtransactions'. I think that this would let me count quicker but, I would like to know if there is a way/api that will push me the world wide unconfirmed tx as they happen (so that I am always 100% accurate to count the real time number of transactions world wide).
Note: I only need to count the precise 'number of'.