Fortnox MCP Server and API by Cotlet

by cotlet Your server? Claim it

answering

Fortnox MCP Server and API by Cotlet is answering right now. Last checked 4 min ago.

Fortnox MCP server: create invoice, send invoice, create customer, book voucher.

Uptime history 12 hours of history

12 hours agonow

100.0%

Uptime 24h

88 of 88 checks

—

Tools

hidden behind auth

230 ms

Response time

average over 24h

OAuth sign-in

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Fortnox MCP Server and API by Cotlet 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 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add fortnox --transport http https://cotlet.dev/mcp/v1/fortnox/connect

Settings → Connectors → Add custom connector, then paste this address

https://cotlet.dev/mcp/v1/fortnox/connect

~/.codex/config.toml

[mcp_servers.fortnox]
url = "https://cotlet.dev/mcp/v1/fortnox/connect"

.cursor/mcp.json

{
  "mcpServers": {
    "fortnox": {
      "url": "https://cotlet.dev/mcp/v1/fortnox/connect"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "fortnox": {
      "type": "http",
      "url": "https://cotlet.dev/mcp/v1/fortnox/connect"
    }
  }
}

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.

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

Endpoints

URL	Transport	State	Latency	Checked
https://cotlet.dev/mcp/v1/fortnox/connect	streamable-http	sign-in	179 ms	4 min ago
https://cotlet.dev/mcp/v1/fortnox	streamable-http	answering	116 ms	4 min ago

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Fortnox MCP Server and API by Cotlet — questions

Answers built from our own checks of this server.

Why is there no tool list for Fortnox MCP Server and API by Cotlet?

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 Fortnox MCP Server and API by Cotlet working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 88 of 88 checks got a reply (100.0%), average response time 230 ms. The bar chart above shows every period we have measured.

How do I connect Fortnox MCP Server and API by Cotlet?

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 Fortnox MCP Server and API by Cotlet?

No API key is involved. Fortnox MCP Server and API by Cotlet 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 Fortnox MCP Server and API by Cotlet?

It answers our handshake in 230 ms on average, which is faster than 59% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.