Codex With Multiple Accounts (2026)
OpenAI's multi-account plugin note names ChatGPT, not Codex, and there is no Outlook plugin. One MCP server reaches every mailbox and calendar you own.
15 posts
OpenAI's multi-account plugin note names ChatGPT, not Codex, and there is no Outlook plugin. One MCP server reaches every mailbox and calendar you own.
Codex has no separate subscription. Every ChatGPT plan includes it and meters it against a 5-hour window. Here is every tier and what drives the cost.
Yes, you can reach every Gmail and Outlook account from one Codex session. Connect all your mailboxes to Carly, register one MCP server, and just ask.
Two Atlassian tenants in one Codex session is solvable. What is not is anything happening when you are not at the keyboard. How to cover both.
Codex has no Teams connector, and channel reads need an Entra admin. Connect all your Teams accounts to Carly, register one MCP server, and ask across them.
Codex's Drive plugin was left out of OpenAI's multi-account release. Add every Drive to Carly, register one MCP server, and reach all of them from the CLI.
Codex has no OneDrive connector. Connect all your Microsoft accounts to Carly, register one MCP server, and reach them all from the Codex CLI.
Codex has no SharePoint connector. Connect all your Microsoft accounts to Carly, register one MCP server, and reach every site from the CLI.
Codex has no first-party calendar connector, so multi-account access comes down to which MCP server you register. One server beats one per account.
Notion's own MCP server authorizes one workspace, and stacking entries leaves Codex unable to tell them apart. One named server fixes the routing.
Codex reaches Outlook only through MCP, so two tenants is a config problem rather than a hard limit. One server covers every calendar at once.
Codex's Slack app launches coding tasks, it does not read your channels. Two different multi-workspace questions hide behind that, with different answers.
Codex uses ChatGPT's Gmail plugin, which takes several accounts. Here is that setup, plus one MCP server that adds Outlook and works in the IDE extension.
Codex reaches Outlook only through MCP. Add every mailbox to Carly, register one MCP server, and reach them all from the Codex CLI.
OpenAI ships three surfaces: Chat, Work, Codex. Work does business jobs across your apps; Codex works in your codebase. How to pick, and when to use both.