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en How Does OAuth Client Work

Alexandre edited this page Jul 20, 2026 · 7 revisions

How Does OAuth Client Work?

OAuth Client lets AI clients that speak OAuth 2.0 — like ChatGPT — authenticate to your MCP server through a proper authorization flow instead of a static key. Arthur publishes the protected-resource and authorization-server metadata the client needs to discover automatically, and rejects unauthorized requests with a standard WWW-Authenticate challenge pointing at that metadata.

Open the Arthur screen that visually supports “How Does OAuth Client Work?”.

Open the Arthur screen that visually supports “How Does OAuth Client Work?”

There are three modes: Disabled, Arthur-managed (Arthur runs the OAuth server for you), and External (you point it at your own OAuth/OIDC provider). The AI client never sees your Arthur password — it authenticates through whichever provider is actually configured.

Open the Connect tab to show the product area discussed by this wiki page.

Open the Connect tab to show the product area discussed by this wiki page

Learn more: How to Connect ChatGPT via OAuth.

Bring the OAuth Client area into the viewport for a focused, semantic screenshot.

Bring the OAuth Client area into the viewport for a focused, semantic screenshot

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