mcpbeat

Quaderno MCP Server

io.usefulapi/quaderno
answering

Quaderno is answering right now. Last checked 11 min ago. Last commit 1 Aug 2026.

MCP server for Quaderno — tax-rate calculation, invoices, contacts, products, receipts & expenses.

Uptime history 39 hours of history · worst hour 0%
39 hours agonow
36.3%
Uptime 24h
33 of 91 checks
—
Tools
hidden behind auth
162 ms
Response time
average over 24h
0
Stars
last commit 1 Aug 2026

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add quaderno --transport http https://quaderno.usefulapi.io/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "quaderno": {
      "url": "https://quaderno.usefulapi.io/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.quaderno]
url = "https://quaderno.usefulapi.io/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "quaderno": {
      "url": "https://quaderno.usefulapi.io/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "quaderno": {
      "url": "https://quaderno.usefulapi.io/mcp"
    }
  }
}

Endpoints

URLTransportStateLatencyChecked
https://quaderno.usefulapi.io/mcp streamable-http answering 207 ms 11 min ago

Quaderno — questions

Answers built from our own checks of this server.

Is Quaderno working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 33 of 91 checks got a reply (36.3%), average response time 162 ms. The bar chart above shows every period we have measured.
How do I connect Quaderno?
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 Quaderno need an API key?
No. Quaderno completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.
How fast is Quaderno?
It answers our handshake in 162 ms on average, which is faster than 71% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Quaderno open source?
Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.