How to track a transaction to a bitcoin wallet with e-mail notification?

Question

bitcoin

Tell me online services that allow you to track incoming transactions from the specified bitcoin wallets (not necessarily mine, any)? For example, I have a list of 4 wallets and I want to instantly know which of the wallets received bitcoins?

Answer 1

The github is full of this rubbish. Google “self hosted bitcoin wallet github”

Answer 2

Do you use a decentralized cryptocurrency and, most importantly, check the receipt of funds, do you want to entrust a third party? You definitely don't understand something.
The simplest thing is to install any bitcoin wallet on your server, even the official bitcoin core (in -prune mode, it now takes about 5GB on disk, and after 'loading' the blocks, it works fine even on the first raspberry, i.e. does not require any memory no processor, but you need a relatively fast disk, regular usb is not enough, it is advised to use a network nas), it has the ability to hang a callback (calling your application) when a transaction appears in your wallet. Also in the core there is the functionality of watch only wallets, when all the information will be available to you for reading even without private keys.
ps in default prune mode you can only track transactions in addresses added to the wallet after blocks have been loaded, otherwise you need to reload blocks adding addresses while the very first ones are being scanned.