Connect an account once for every AI you use
One sign-in, a level for each AI, and never a password in the AI.
gbrain.io
Every AI asks for its own key, and nobody knows what each one can reach. GBrain holds the sign-in once: Gmail, the calendar, Stripe. The AI gets the result of a call, never the password, and every call lands on one record.
Connect Gmail or Stripe on the vendor's own page, once; every application GBrain hooks up to is on one shelf. Every AI you plug in reaches the account at the level you set, Off to Full, and a level moved takes effect at the next call, with nothing to restart and nothing to sign in to again.
Every request an AI makes stops with GBrain first, and no password or key ever reaches the AI. The figure reads left to right: who is asking, what is checked, and which account finally answers.
Switch an AI off and its next call is refused, while the record of what it already did stays. Every tool has a daily limit, so a job that runs away stops on its own, and you read what happened on one activity log.
The permissions, the daily limits and the record are the same either way. Only the thing doing the asking changes, and each one takes about a line to set up: every account is a command in the terminal, and over MCP each AI sees only the accounts it may reach.
One line installs gbrainio. Search a mailbox, file a receipt or draft a reply without leaving the terminal.
See the command line
Paste one address into the AI you already use. This is the connection they call MCP, and each AI sees only the accounts you let it reach.
See how MCP works
Pin GBrain to a Mac, iPhone or Android and it opens like an app, without hunting for a tab. No store, no download.
Install it
Sign in, pick Gmail or the calendar, and say whether an AI may read it or change it. Every AI you plug in can use the account on its very next call, and you can change any of it, or take all of it back, whenever you want.
