Is there an API that makes streams transactions as they're confirmed? Everything I can find seems to just be putting out unconfirmed transactions in realtime, rather than waiting for confirmation.

To clarify, I'm looking to stream all transactions, not just one wallet.

1 Answer 1


You can't really "stream" them. Transactions get confirmed once included in a block. So for 10 minutes you would have nothing and then all of a sudden there would be a 1,000+ transactions with a confirmation. If that's what you're looking for you can just use something like https://blockchain.info/block-index/$block_index?format=json and replace $block_index with the latest block. The json will respond with all transaction id's in an array that were included under "tx":


Blockchain.info has all the info you need. First get the current block height which you can get from https://blockchain.info/stats?format=json

$bcinfo = json_decode(file_get_contents("https://blockchain.info/stats?format=json"), true);
$latestblock = $bcinfo["n_blocks_total"];

Then plug the current block into https://blockchain.info/block-height/$latestblock?format=json

$getblock = json_decode(file_get_contents("https://blockchain.info/block-height/".$latestblock."?format=json"), true);    

Then just count the amount for each array and run a for loop to grab each input(from address) and each output(receiver) along with the time.

Here's one I did quickly in PHP: http://phpfiddle.org/lite/code/k16m-r8fh

$bcinfo = json_decode(file_get_contents("https://blockchain.info/stats?format=json"), true);
$latestblock = $bcinfo["n_blocks_total"];
$getblock = json_decode(file_get_contents("https://blockchain.info/block-height/".$latestblock."?format=json"), true);
$counttxs = count($getblock["blocks"][0]["tx"]);
    //tx time
    $timetx = $getblock["blocks"][0]["tx"][$i]["time"];
    $date = date('Y-m-d, H:i:s', $timetx);
    echo $date."<br>";
    //count inputs
    $countinputs = count($getblock["blocks"][0]["tx"][$i]["inputs"]);
        //get input address
        $addr = $getblock["blocks"][0]["tx"][$i]["inputs"][$ii]["prev_out"]["addr"];
        echo $addr ? "INPUT: ".$addr."<br>" : "";
    //count outputs
    $countouts = count($getblock["blocks"][0]["tx"][$i]["out"]);
        //get output address
        $outaddr = $getblock["blocks"][0]["tx"][$i]["out"][$iii]["addr"];
        echo $outaddr ? "OUTPUT: ".$outaddr."<br>" : "";
    echo "<br><br>";

  • Is there any API out there that makes it easy to get at the send/receive addresses and original date/time a transaction appeared for transactions that have been verified in the blockchain?
    – geofurb
    Commented May 29, 2016 at 0:52
  • Yes you can just use blockchain.info they have all the info. I edited my answer to include some code examples.
    – m1xolyd1an
    Commented May 29, 2016 at 5:36

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