Double Check MCP Server

by mgleonard-ops Your server? Claim it

answering

Double Check is answering right now. Last checked 9 min ago. It exposes 1 tools.

AI-powered scam detection for suspicious texts, emails, and screenshots. US-focused.

Uptime history 47 days of history · worst day 99%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

290 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

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

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add double-check --transport http https://web-production-970ba.up.railway.app/mcp

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

{
  "mcpServers": {
    "double-check": {
      "url": "https://web-production-970ba.up.railway.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.double-check]
url = "https://web-production-970ba.up.railway.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "double-check": {
      "url": "https://web-production-970ba.up.railway.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "double-check": {
      "url": "https://web-production-970ba.up.railway.app/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

check

check

Check whether a message, URL, email, or piece of text is a scam. Returns a verdict (safe/scam/action/ignore), a plain-English summary, recommended next steps, and a confidence level.

Endpoints

URL	Transport	State	Latency	Checked
https://web-production-970ba.up.railway.app/mcp	streamable-http	answering	281 ms	9 min ago

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Double Check — questions

Answers built from our own checks of this server.

What can Double Check do?

It exposes 1 tools, read directly from the server on our last check. Among them: check. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Double Check 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 290 ms. The bar chart above shows every period we have measured.

How do I connect Double Check?

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.

Does Double Check need an API key?

No. Double Check completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Double Check?

It answers our handshake in 290 ms on average, which is faster than 51% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.