Connect the Codex App to Agent Authority

When you finish, every MCP tool call the Codex App makes is checked against your policies and recorded in the audit log. OpenAI's Codex App reaches your approved tools through one SecureAuth Agent Authority gateway URL, and each developer signs in as themselves.

SetupCopy Anchor Link

1. Add the MCP server. Add the following to ~/.codex/config.toml:

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   [mcp_servers.secureauth]
   url = "https://your-gateway-url/gateway/mcp"

2. Authenticate.

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   codex mcp login secureauth

3. Open Codex App. Launch the Codex desktop app.

   The agent is auto-registered on first connect.

Connecting to just one MCP? To stay under an agent's tool limit, point the URL at a single MCP — /gateway/mcp/{slug} instead of /gateway/mcp. Grab the exact URL from the resource's detail page; see Scope a connection.

Next stepsCopy Anchor Link

• Create a policy – control which tools the Codex App can call.
• Monitor activity – watch its tool calls appear in the dashboard and audit log.
• Send Codex telemetry – track its token usage in Enforcement traffic and its cost in Cost and adoption.