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Connect Cuik inside ChatGPT

Remote connector: setup details, intended workflow and current availability.

2 min readUpdated 01/10/2026
On this page
  1. Connect ChatGPT to Cuik
  2. Connection settings
  3. Steps
  4. Check the connection

Connect ChatGPT to Cuik

The connector makes Cuik tools available in ChatGPT without a local program. It uses the public MCP server and the permissions of your Cuik account.

Follow the illustrated steps below. Click a screenshot to enlarge it. The interactive guide in Cuik is also available under Connecteur → ChatGPT. Some screenshots show the French interface.

Connection settings

Field Value
Name Cuik
MCP server URL https://mcp.cuik.io/mcp/server
Authentication OAuth, default settings
Description and logo Optional

Keep the advanced settings unchanged: no client ID or client secret is required.

Orange Cuik logo on a transparent background

Download the Cuik logo as a PNG, or right-click the image to save it.

Steps

  1. In ChatGPT settings, open Security and login and enable Developer mode.

    Developer mode in ChatGPT settingsEnable Developer mode under Security and login.

  2. Open Plugins, then + → Create app. If an upload dialog appears, choose Create MCP App; no ZIP file is needed.

    Plugins menu with the Create app actionUse the + button to create an app.

    New Plugin dialog with the Create MCP App buttonChoose Create MCP App if this dialog appears.

  3. Enter the name and URL above, keep OAuth selected, then read and accept the displayed terms before creating the connector.

    Cuik connector form with the MCP URL and OAuth authenticationName: Cuik. URL: https://mcp.cuik.io/mcp/server. Authentication: OAuth.

  4. Click Sign in with Cuik. In the Cuik authorization form, paste your API key from Cuik → Settings → API, then authorize the connection. Do not paste this key into a chat message.

    Add Cuik to ChatGPT screen with the Sign in with Cuik buttonSelect Sign in with Cuik to open the authorization page.

    Cuik API settings with a masked key and the Copy buttonCopy your key under Settings → API. The key in this screenshot is masked.

    Cuik authorization form with an empty API key fieldPaste your key into this Cuik form, then authorize the connection.

  5. Open a new conversation and enable Cuik among the apps or tools.

To reduce confirmation prompts, open Plugins → Cuik → Permissions and select Allow all tools. This covers reads and the create, update or delete actions available to your Cuik account. This choice is optional; you can keep the default permissions. Labels and developer-mode availability depend on the current UI, account and workspace policies. Official OpenAI guide.

Cuik connector permissions and the Allow all tools optionManage permissions in the Cuik connector settings.

Check the connection

text
With Cuik, list my projects without changing anything.

Check that ChatGPT calls a Cuik tool and returns your actual projects. A generic answer without a tool call does not confirm the connection.

  • Empty tool list: select Refresh in the Cuik app settings and open a new conversation.
  • Developer mode missing: check your account features or ask your workspace administrator.
  • 401 / 403: check your API key and Cuik account access.
  • Incorrect address: use the complete URL ending in /mcp/server.

Cuik connector tool list and the Refresh buttonIf the tool list is empty, select Refresh.

For Claude, select Connecteur → Claude in the same guide. For Codex or Claude Code, see MCP installation.

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