# Codex CLI Connect Biosimulant from a terminal on your computer. This guide is separate from the [Codex desktop](/agents/connect/codex) app guide. ## Open your terminal Open **Terminal** on Mac or your terminal app on Windows. First check the CLI that your terminal actually runs: ```bash codex --version codex mcp --help ``` The help must include **add** and **login**. If either is missing, follow [OpenAI’s CLI installation guidance](https://learn.chatgpt.com/docs/cli) to update the CLI, reopen your terminal and check again. An up-to-date desktop app does not guarantee that a separately installed terminal CLI is current. Add the server, then authenticate that same server name: ```bash codex mcp add biosimulant --url https://api.biosimulant.com/mcp codex mcp login biosimulant --scopes hub:read,biology:read,workspaces:read,workspaces:write,runs:read,runs:write,passports:read,packages:publish,offline_access ``` Using staging? Replace the server address with the address from staging Studio. See [OpenAI’s CLI reference](https://learn.chatgpt.com/docs/cli/reference) for the available MCP commands. If the server already exists, skip `add` and use `login` only if authentication is needed. Desktop and CLI share MCP configuration on the same Codex host; a different computer or remote host may need its own setup. Run `codex` to start a new terminal chat, then type `/mcp` to inspect the available tools. ## Check the connection Ask your agent: ```text Check my Biosimulant account and tell me whether this connection is personal or for a team. Do not start a session or run anything. ``` Confirm the account and context, then [create a session in Studio](/studio/quickstart) and paste its session prompt into this agent. Setup alone does not join a Studio session. [Setup help](/agents/connect/help) · [Choose another app](/agents/connect) Using ordinary ChatGPT chat? Follow [ChatGPT desktop](/agents/connect/chatgpt-desktop).