Tarifkatalog MCP Server

by tarifkat Your server? Claim it

answering

Tarifkatalog is answering right now. Last checked 10 min ago. It exposes 3 tools.

German SIM-only and data tariffs of about 50 providers, read daily, ranked by 24-month cost.

Uptime history 34 hours of history

34 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

140 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Tarifkatalog 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 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add tarifkatalog --transport http https://tarifkat.de/mcp/open

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

https://tarifkat.de/mcp/open

~/.codex/config.toml

[mcp_servers.tarifkatalog]
url = "https://tarifkat.de/mcp/open"

.cursor/mcp.json

{
  "mcpServers": {
    "tarifkatalog": {
      "url": "https://tarifkat.de/mcp/open"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "tarifkatalog": {
      "type": "http",
      "url": "https://tarifkat.de/mcp/open"
    }
  }
}

Available tools 3

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

providers

list_providers

Lists the German mobile providers in the comparison with their slug, number of phone and data tariffs, cheapest average monthly cost and networks. Use it to see which providers are covered and to get the slug that filters a tariff search by provider.

tariff

get_tariff

Returns one tariff in full: all costs, data, network, speed, term, a one-sentence summary and its price history. Use it when the user asks about one specific tariff, given by the id that tariff search results contain.

tariffs

search_tariffs

Searches current German SIM-only mobile tariffs, or data-only tariffs, and returns them ranked, cheapest average monthly cost over 24 months first. Use it to find or compare tariffs by data volume, network, contract term, 5G, speed or provider. Returns at most 30 tariffs and the total number that match. Covers Germany only, SIM-only tariffs without a phone.

Endpoints

URL	Transport	State	Latency	Checked
https://tarifkat.de/mcp/open	streamable-http	answering	123 ms	10 min ago

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Tarifkatalog — questions

Answers built from our own checks of this server.

What can Tarifkatalog do?

It exposes 3 tools, read directly from the server on our last check. Among them: get_tariff, list_providers, search_tariffs. 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 Tarifkatalog 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 140 ms. The bar chart above shows every period we have measured.

How do I connect Tarifkatalog?

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.

Does Tarifkatalog need an API key?

No. Tarifkatalog completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Tarifkatalog?

It answers our handshake in 140 ms on average, which is faster than 85% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.