Hello minimeeker,
Thanks for the post in Apple Support Communities. I see you have a question about the Keychain Access app on your Mac.
Can you provide more information about what you'd like to do in Keychain Access? Keychain Access is a built-in app that can't be disabled, but there may be options, depending on what you're looking to do. This is a great resource that covers what you can do with Keychain Access: What is Keychain Access on Mac?
If you happen to be seeing repeated prompts to enter a login keychain password, this resource might help you as well: If your Mac keeps asking for the login keychain password
I hope this helps get you started.
Take care.