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Curio — design style library MCP Server

by designbycurio Your server? Claim it
answering

Curio — design style library is answering right now. Last checked 8 min ago. Last commit 21 Oct 2026.

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

Uptime history 91 days of history · worst day 92%
91 days agonow
100.0%
Uptime 24h
91 of 91 checks
—
Tools
hidden behind auth
130 ms
Response time
average over 24h
0
Stars
last commit 21 Oct 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 18 September 2026. No other catalogue keeps this.

18 Sep the owner changed

Nothing serious here today

Today is the operative word: we check Curio — design style library every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add curio --transport http https://mcp.designbycurio.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://mcp.designbycurio.com/mcp
~/.codex/config.toml
[mcp_servers.curio]
url = "https://mcp.designbycurio.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "curio": {
      "url": "https://mcp.designbycurio.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "curio": {
      "type": "http",
      "url": "https://mcp.designbycurio.com/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://mcp.designbycurio.com/mcp streamable-http sign-in 132 ms 8 min ago

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Curio — design style library — questions

Answers built from our own checks of this server.

Why is there no tool list for Curio — design style library?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is Curio — design style library working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 130 ms. The bar chart above shows every period we have measured.
How do I connect Curio — design style library?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Curio — design style library?
No API key is involved. Curio — design style library answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Curio — design style library?
It answers our handshake in 130 ms on average, which is faster than 87% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Curio — design style library open source?
The code is open source: it is published under the MIT licence and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at mcp.designbycurio.com, which runs on its operator's own terms.