Is there a way to get alerts for mempool?

Like if fees get to 5 sats per vb, I would get an alert

Does this exist ?
nostr:nprofile1qqsqfjg4mth7uwp307nng3z2em3ep2pxnljczzezg8j7dhf58ha7ejgpz4mhxue69uhkummnw3ex2mrfw3jhxtn0wfnszynhwden5te0wahhgtn4w3ux7tn0dejszxthwden5te0wdjkuerfwshxummnvekxzun99e3k7mgrcp7e2
nostr:nprofile1qqs04xzt6ldm9qhs0ctw0t58kf4z57umjzmjg6jywu0seadwtqqc75spz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshszxnhwden5te0wpuhyctdd9jzuenfv96x5ctx9e3k7mf0dv4ph5
nostr:nprofile1qqsw3znfr6vdnxrujezjrhlkqqjlvpcqx79ys7gcph9mkjjsy7zsgygpr9mhxue69uhhqatjv9mxjerp9ehx7um5wghxcctwvsq3samnwvaz7tmjv4kxz7fwdehhxarjd93kztnrdaksz9thwden5te0wfjkccte9ekk7um5wgh8qatz7tvu4p