Yes, it should be and is provided by brokers but I personally don’t trust it… not unless it’s some very simple stock split in which case I don’t bother.
I have about 70 lines of stock across several brokers. Most corp actions you don’t get any choice about, they will just usually award you x shares for the y that you hold… those I don’t check.
I refer only to the voluntary corp actions… those I check out both to decide whether I want to increase a stake and also to verify from the company’s own docs what the broker has said. Of the latter, they don’t happen that often… certainly not more frequent than once a month and it only takes 15 mins of my time to then do any reading about it that might be necessary.