This page is part of the AeThex documentation system.
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Authentication explains how users, services, and integrations prove identity before accessing AeThex systems.
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> [!NOTE]
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> This article is a placeholder and should be expanded.
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<div class="docs-section-heading">
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<h2>Authentication model</h2>
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<p>Authentication starts with Passport and extends into API, app, and organization access.</p>
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</div>
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{{PageIndex}}
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AeThex authentication should be handled through [[Passport]] wherever possible. Passport acts as the user-facing identity layer, while APIs and backend services validate sessions, tokens, or service credentials against that identity context.
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## Common flows
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- User sign-in through [[Passport]].
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- Account linking through [[Linked-Accounts]].
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- Organization access checks through [[Organizations]] and [[Teams]].
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- API requests authenticated through documented credentials in [[Api-Reference]].
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- Automation and local tooling authenticated through [[CLI]] or [[SDKs]].
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## Implementation checklist
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1. Choose the identity flow: user session, linked account, or service credential.
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2. Request only the scopes needed for the integration.
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3. Validate tokens server-side before trusting user claims.
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4. Check [[Permissions]] after authentication; identity alone is not authorization.
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5. Log security-relevant failures for audit and support.
