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# Users

Users are individuals who authenticate and interact with the Natural platform. Each user is associated with a party membership that links the user to one or more Parties. A user can authenticate through Google OAuth, Email/Password + 2FA, phone number + OTP, or SAML SSO (coming soon).

## User permissions

Users can have different permission levels over a Party:

* **Owner** — Full control (manage users, agents, payments)
* **Admin** — Manage operations (create agents, send payments)
* **Viewer** — Read-only access to transactions

## Related concepts

* [Parties](/guides/concepts/parties) — Party identities that users operate as
* [Agents](/guides/concepts/agents) — Autonomous agents created by users