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 each mailbox to Carly, register one MCP server, and name the inbox.
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. Add each tenant to Carly, register one MCP server, and name the tenant you mean.
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. Add every Microsoft identity to Carly, register one MCP server, and address them all from the Codex CLI.
Codex has no SharePoint connector. Add every Microsoft identity to Carly, register one MCP server, and reach every site and tenant 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 addresses every calendar by address.
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's Gmail plugin holds one account. Add every inbox to Carly, register one MCP server, and reach all of them from the Codex CLI.
Codex reaches Outlook only through MCP. Add every mailbox to Carly, register one MCP server, and address 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.