Connectors Guide

Connector from the MCP registry

Curio, design style library

Design-style library for AI agents: find a style by use or mood, preview it, apply its spec.

The address

https://mcp.designbycurio.com/mcp
Transport
Streamable HTTP
Sign-in
Optionally, a key in the Authorization header, written Bearer YOUR_KEY. The publisher says: "Optional, leave empty to sign in with OAuth. For clients that can't open a browser: "Bearer " plus a personal API key (curio_sk_…) created at designbycurio.com/account/connected. Keys are read-only unless you allow unlocking when you create one."
Published by
designbycurio.com (domain checked by the registry)
Registry name
com.designbycurio/curio, version 0.5.0
In the registry since
5 June 2026

How to add Curio, design style library to Claude

  1. In Claude on the web or desktop, open Customize, then Connectors (Settings > Connectors in some versions).
  2. Press + Add, then Add custom connector.
  3. Name it Curio, design style library, paste the address and press Continue.
  4. Under Request headers, add the header Authorization with the value Bearer YOUR_KEY, your key in place of YOUR_KEY. Press Add. The registry entry says the key is optional: you can also leave the header out and sign in when you connect.
  5. Press Connect next to it and sign in if it asks.
  6. In a chat, press +, then Connectors, to switch it on.

On your phone: connectors belong to your Claude account. Add it once on claude.ai or in the desktop app, and it is in the Claude app for iPhone and Android too: in a chat, press +, then Connectors, and switch it on.

Claude's free plan allows one custom connector; paid plans allow more. On Team and Enterprise plans an owner adds it once under Organization settings > Connectors, and each member then presses Connect. Claude's help page

How to add it to ChatGPT

  1. On chatgpt.com, on a Plus, Pro, Business, Enterprise or Edu plan, turn on Developer mode (Settings > Security and login, or Settings > Apps > Advanced settings in some versions).
  2. Open Settings > Apps and create an app (the + or Create button).
  3. Name it Curio, design style library, paste the address, choose OAuth (or No authentication if the server is open) and press Create.
  4. Sign in when it asks.
  5. In a new chat, press + and pick Curio, design style library.

ChatGPT's custom apps cannot send a key header; choose OAuth, which the registry entry says this server also offers.

ChatGPT's menus move now and then; the idea stays the same: a new app, this address, OAuth. On business plans an admin may have to allow custom apps first.

Claude Code

claude mcp add --transport http curio-design-style-library https://mcp.designbycurio.com/mcp --header "Authorization: Bearer YOUR_KEY"

Put your key in place of YOUR_KEY. The key is optional here: leave out --header and run /mcp to sign in instead.

Source

This page is made from the official MCP registry on 30 October 2026 and has not been checked by hand. A connector acts as you: check who publishes it before you connect anything that can change your data.

In design.