But since there are million of transaction how to catch the targeted address?
I use the mempool API in my script/bot
https://mempool.space/docs/api/rest#get-address-transactions-mempoolyou can retrieve the mempool TX related to one address even if those TX aren't unconfirmed
curl -sSL "https://mempool.space/api/address/1wiz18xYmhRX6xStj2b9t1rwWX4GKUgpv/txs/mempool"