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Connect Codex to Ultimo Bots

Two commands connect OpenAI Codex to the Ultimo Bots MCP server. Codex can then create an agent, teach it your site, fetch the embed code and put it into your project, all from the same session as your code.

2 min read Updated

Terminal

  1. Add the server

    codex mcp add ultimo-bots --url https://mcp.ultimo-bots.com/mcp

  2. Start the sign-in

    codex mcp login ultimo-bots

    On a machine without a browser, add --no-browser.

  3. Approve on the consent page

    A browser tab opens in the Ultimo Bots portal. Sign in, and the page Connect an AI assistant opens. Choose the Workspace. Every permission the client asks for starts ticked, so untick what you do not want to give, or use Clear all and tick only what you need. Agent access starts on All agents in this workspace, including future agents; switch to Only selected agents if you prefer. Then click Allow connection.

  4. Restart Codex

    The Ultimo Bots tools load with the next session. For Codex to create an agent, the approval needs All agents in this workspace, including future agents and the permission Create and rename agents.

  5. Try it

    Ask: “List my Ultimo Bots agents.” In the terminal interface, /mcp shows the connected servers.

Let Codex do it. Paste this prompt into Codex. It is the same one as on the portal's MCP connections page:
Connect the Ultimo Bots MCP server for me. Run `codex mcp add ultimo-bots --url https://mcp.ultimo-bots.com/mcp`, then `codex mcp login ultimo-bots`. A browser window opens: tell me to sign in, choose my workspace and click "Allow connection", and wait until I confirm. Then tell me to restart Codex so the Ultimo Bots tools load. In the new session, list my Ultimo Bots workspace and agents to check the connection.

config.toml

You can also add the server by hand in your Codex configuration:

[mcp_servers.ultimo-bots]
url = "https://mcp.ultimo-bots.com/mcp"

Codex app and IDE extension

In the app, go to Settings → MCP servers → Add server. In the IDE extension, open the gear menu, then MCP servers → Add server. Choose Streamable HTTP, enter the URL, save and restart, then select Authenticate and approve on the consent page. Steps from OpenAI's Codex documentation (read November 8, 2026).

What to ask Codex

  • “Create an Ultimo Bots agent for this site, add our docs pages as knowledge and put the embed code into the site-wide layout.” Codex fetches the code with the tool get_embed_instructions.
  • “Read this week's conversations and list what our docs do not answer.”
  • “Match the widget colors to the colors in our CSS.”

See Add Ultimo Bots to any website for the code and the framework steps. For what the agent does in a conversation, such as calling your own public API, describe the job to Mo in the AI Studio: Mo builds and tests the skill.

Change or remove the connection

In the Ultimo Bots portal, open MCP connections in the sidebar next to Agents and Workspaces. Revoke access ends a connection at once. Locally, codex mcp list shows your servers.

Next steps

Build with MoDescribe a job in plain words and Mo builds it as a tested skill for your agent.SkillsWhat your agent can do in your own systems, through public APIs and MCP servers.All AI clientsThe MCP server, its permissions and the guides for every other AI client.