We develop apps that depend on a handful of services like these. Each service has its own page for specifying API credentials and for various configuration options which must be entered manually through a GUI; it can't be declared through Puppet/Chef/etc.
Another pain point is that every service needs its own login, very few of them support 2FA, very few of them support team-oriented accounts (ie., where login is separate from the account, and access is delegated to the account; Mailgun and Digital Ocean, for example, lacks this, whereas Scout, Rollbar etc. don't), each has a completely proprietary health status page, etc.
I am hoping someone someday will invent a centralized app (preferably based on an open protocol so there can be multiple providers) for this kind of organizational access. Sort like OpenID, except it needs role-based permission levels.
Our tech can put the API keys into your app's env so you likely wont need the GUI you are talking about.
Our App dashboard has SSO login into all the addons. So you dont need to worry about account creds, just click a button and you are logged in.
I think our product is a solution to your problem(s), happy to answer any more questions or give more details.
https://addonlist.com/products/rollbar
More to come, what services would you like next?
