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Who may do what

Five words and three rules explain accounts, permissions, API keys, and applications.

3 min read Updated 2026-11-03 #identity#accounts#authorization#api-keys

Cloud uses five words and three rules to explain access.

Five words

Word Meaning
Account A person, an agent, or a service account. An agent is an account without a person, created by an administrator. A service account belongs to an object or an app, such as a mailbox.
Group Many accounts together.
Permission (German: Recht) An account or group, a level, and an object. The levels are View, Edit, and Manage (German: Ansehen, Bearbeiten, Verwalten).
API key On an account, another sign-in that may do what that account may do. A new agent key acts exactly as its agent; an older key keeps the narrower scopes it was created with, and a models-only key reaches only AI models. For agents, an OAuth client ID and secret are the other form. On an object, a key may do one thing on that object and acts for no person or agent; Cloud stores it on a resource-bound account of that object.
Manifest The app's declaration (defineApp): what it offers and needs from the platform. Deploying the app grants its declared platform permissions; a few, such as reading other apps' mail, also need an operator's grant.

Three rules

  1. Every call on an object runs as one account. The provider checks that account's permission on the object and the action's rules.
  2. An app has no permissions of its own on objects. With a person, it passes that person through. Alone, it uses an agent or an object API key stored in a setting. An app may call platform services without a person (appCaller()), but that reaches no object.
  3. Background work runs as its owner, like crontab, with the owner's current permissions.

The administrator is root: able to repair access, but with no automatic access to content. The exception is outgoing app mail in the administrator's notification view.

If you know Unix

Cloud Unix analogy
Account User or service user
Group Group
Permission chmod or ACL
API key authorized_keys, or a link for one object action
Manifest Package

Words outside this model

Scopes on new agent keys are no longer a separate concept: the agent's permissions decide what the key may do. Older keys keep their scopes. “As the app” is not an identity with object permissions. Runtime keys are platform internals, not another account or permission model.

The detailed pages describe the supported APIs and existing credential formats: Resource authorization, App access, Agents and service accounts, Background mandates, and OAuth.

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