Klar Calculators MCP Server

by worldly Your server? Claim it

answering

Klar Calculators is answering right now. Last checked 7 min ago. Last commit 9 Oct 2026.

Jordan & GCC labour-law, tax and finance calculators for AI agents — 36 deterministic tools.

Uptime history 11 days of history · worst day 99%

11 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

283 ms

Response time

average over 24h

Stars

last commit 9 Oct 2026

Klar Calculators missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add klar --transport http https://mcp.worldly.pro/mcp

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

{
  "mcpServers": {
    "klar": {
      "url": "https://mcp.worldly.pro/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.klar]
url = "https://mcp.worldly.pro/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "klar": {
      "url": "https://mcp.worldly.pro/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "klar": {
      "url": "https://mcp.worldly.pro/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but you need an API key from its owner to call it.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.worldly.pro/mcp	streamable-http	needs key	152 ms	7 min ago

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Klar Calculators — questions

Answers built from our own checks of this server.

Why is there no tool list for Klar Calculators?

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 Klar Calculators 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 283 ms. The bar chart above shows every period we have measured.

How do I connect Klar Calculators?

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: it refuses anonymous clients.

Does Klar Calculators need an API key?

Yes. Every time we knock, Klar Calculators 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 Klar Calculators?

It answers our handshake in 283 ms on average, which is faster than 50% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Klar Calculators open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.