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Ref Tools Ref Tools MCP Server

answering

Ref Tools Ref Tools MCP is answering right now. Last checked 4 min ago. Last commit 6 May 2026.

Provide your AI coding tools with token-efficient access to up-to-date technical documentation for…

Uptime history 47 days of history
47 days agonow
100.0%
Uptime 24h
92 of 92 checks
Tools
hidden behind auth
344 ms
Response time
average over 24h
1176
Stars
last commit 6 May 2026

Nothing serious here today

Today is the operative word: we check Ref Tools Ref Tools MCP 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 4 min ago.

run in your terminal
claude mcp add ref-tools-ref-tools-mcp --transport http https://server.smithery.ai/@ref-tools/ref-tools-mcp/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "ref-tools-ref-tools-mcp": {
      "url": "https://server.smithery.ai/@ref-tools/ref-tools-mcp/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.ref-tools-ref-tools-mcp]
url = "https://server.smithery.ai/@ref-tools/ref-tools-mcp/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "ref-tools-ref-tools-mcp": {
      "url": "https://server.smithery.ai/@ref-tools/ref-tools-mcp/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "ref-tools-ref-tools-mcp": {
      "url": "https://server.smithery.ai/@ref-tools/ref-tools-mcp/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://server.smithery.ai/@ref-tools/ref-tools-mcp/mcp streamable-http sign-in 210 ms 4 min ago

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Ref Tools Ref Tools MCP — questions

Answers built from our own checks of this server.

Why is there no tool list for Ref Tools Ref Tools MCP?
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 Ref Tools Ref Tools MCP working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 344 ms. The bar chart above shows every period we have measured.
How do I connect Ref Tools Ref Tools MCP?
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 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 Ref Tools Ref Tools MCP?
No API key is involved. Ref Tools Ref Tools MCP 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 Ref Tools Ref Tools MCP?
It answers our handshake in 344 ms on average, which is faster than 45% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Ref Tools Ref Tools MCP open source?
Yes — it is published under the MIT licence, written in TypeScript, 1 176 stars on GitHub and 4 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.