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Codex shares MCP settings across the ChatGPT desktop app, Codex CLI, and Codex IDE extension.

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ChatGPT desktop app

1

Open MCP settings

In the ChatGPT desktop app, open Settings → MCP servers and select Add server.
2

Enter the Anagram details

Set the name to Anagram, choose Streamable HTTP, and enter:https://studio.anagram.ai/api/mcpSave the server, then select Restart.
3

Sign in to Anagram

Find Anagram in the server list and select Authenticate. Complete the Anagram sign-in and approval screen. OAuth is handled automatically through Clerk.
4

Check the connection

Type /mcp in the Codex composer. Anagram and its tools should appear in the connected server list.

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Codex CLI

Run:
Your browser opens the Anagram sign-in and approval screen. After signing in, run codex mcp list to check the connection.

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Configuration file

You can also add Anagram to ~/.codex/config.toml:
Then run:
The IDE extension reads the same configuration. A trusted project can instead keep the entry in .codex/config.toml.

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Codex IDE extension

The IDE extension does not have a separate add-server form. Open its settings and choose the option to edit config.toml, add the configuration above, then run codex mcp login Anagram in a terminal. See OpenAI’s current Codex MCP guide for all configuration options.