I know there is a function that allows me to see all transactions that are in mempool, but is there a way to see every new transaction that enters mempool? Like log to file whenever new unconfirmed transaction enter mempool.

  • Hi, what are you trying to achieve ? Commented Sep 24, 2020 at 11:41
  • I'm trying to achieve live list of transactions in mempool. Whenever new transaction enters mempool, I want to receive like push notification to my php that updates transactions in mempool live
    – Mortelity
    Commented Sep 24, 2020 at 12:24

1 Answer 1


This PR got merged yesterday, you can build from master branch and maybe this should solve your problem: https://github.com/bitcoin/bitcoin/pull/19572

A tutorial about using bitcoind zmq: https://bitcoindev.network/accessing-bitcoins-zeromq-interface/

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