How do I connect Fiuto to Codex?

Add Fiuto to Codex as a remote MCP server, then sign in through the browser. Once connected, Codex can use Fiuto to build, launch, and read studies.

What you’ll need

1. A Fiuto account. Sign up at app.fiuto.ai if you don’t have one.
2. Codex CLI installed.
3. A terminal open.

Connect Fiuto

1. Add the server. In your terminal, run:

   codex mcp add fiuto --url https://mcp.fiuto.ai/mcp-server

   If you need to configure it by hand, add this fallback to ~/.codex/config.toml:

   [mcp_servers.fiuto]
   url = "https://mcp.fiuto.ai/mcp-server"

2. Sign in. In your terminal, run:

   codex mcp login fiuto

   Codex opens a browser window for you to sign in to your Fiuto account. Approve the connection.

Check it worked

Start codex in any project and type /mcp. The fiuto server should show as connected with a list of available tools.

For a live check, ask Codex:

“List my Fiuto studies.”

If the connection is good, it returns your studies, or an empty list if you haven’t made any yet.

What you can ask Codex to do

Once connected, Codex does the same kinds of things you’d do in the web editor. A few to get a feel:

1. “Using Fiuto, build me a quick five-second test on this homepage screenshot.”
2. “Create a five-question rating study about the new sign-up flow, then launch it.”
3. “Show me my draft studies.”
4. “Add a screening question so only designers can take this study.”
5. “Launch the onboarding study and share the link.”
6. “Pull the results from my latest study and summarise what people said.”

You don’t need to know what the underlying tools are called. Codex translates your request into the right Fiuto actions on its own.

Troubleshooting

1. /mcp doesn’t list fiuto. Check ~/.codex/config.toml for a typo in the [mcp_servers.fiuto] block or the URL, then restart codex.
2. codex mcp login didn’t open a browser. Copy the URL it prints and open it by hand to finish signing in.
3. You signed in with the wrong account. Run codex mcp logout fiuto, then codex mcp login fiuto and sign in with the right Fiuto account.
4. The login command isn’t recognised. Update Codex CLI to a version that supports MCP login, then retry.

Still stuck? Write to help@fiuto.ai with what you tried and what the error looks like.

Tiers and caps

Connecting Codex does not add a separate allowance. Fiuto uses the plan and usage shared by your account, whichever tool you work from. Check **Settings → Plan & usage** for the current limits. If an action is unavailable, Fiuto explains what is needed and points you to the next step.

Next steps

Author a study from your agent What to ask for to draft a study end to end, how to iterate, and the cleanup worth doing before launch.

Pull study results into your agent Read and analyse your study's responses from your agent. What landed, what's missing, what to ask next.

Connect a different tool Claude Code, Cursor, Lovable, v0, Replit, or any other MCP-ready tool.