Refero MCP Server

io.github.referodesign/refero

answering

Refero is answering right now. Last checked 2 min ago.

Search curated design styles, real product screens, and user flows for evidence-based design work.

Uptime history 3 hours of history

3 hours agonow

100.0%

Uptime 24h

9 of 9 checks

—

Tools

hidden behind auth

398 ms

Response time

average over 24h

API key or OAuth

Access

streamable-http

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add refero --transport http https://api.refero.design/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "refero": {
      "url": "https://api.refero.design/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.refero]
url = "https://api.refero.design/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "refero": {
      "url": "https://api.refero.design/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "refero": {
      "url": "https://api.refero.design/mcp"
    }
  }
}

This endpoint answered with an authorization challenge — the server is running, but you need an API key or OAuth to use it.

Endpoints

URL	Transport	State	Latency	Checked
https://api.refero.design/mcp	streamable-http	needs key	464 ms	2 min ago

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Refero — questions

Answers built from our own checks of this server.

Why is there no tool list for Refero?

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 Refero working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 9 of 9 checks got a reply (100.0%), average response time 398 ms. The bar chart above shows every period we have measured.

How do I connect Refero?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own key or an OAuth login: it refuses anonymous clients.

Does Refero need an API key?

Yes. Every time we knock, Refero answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is Refero?

It answers our handshake in 398 ms on average, which is faster than 36% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.