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Jassverband Schweiz MCP server

Which MCP servers are Jassverband Schweiz's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-23

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Whose server it is
  • Registry namech.jassverband/jasswikiverified in the MCP registry

The registry name sits under jassverband.ch. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-23
  • Stateanswerschecked 2026-10-23
  • Tools3
  • Server calls itselfjasswiki-mcp-server
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-23 the server answered initialize and tools/list without a sign-in. First answer in 138 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: find jass tournaments across Switzerland; track scores and Elo ranking in the Jassguru app; calculate remaining trump odds during a game.
  • Checked on 5 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 5, the first on 2026-10-23
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
  • What an agent can do with it0 of 3 use cases
  • Answeredmeasuring5 of the 7 daily checks it takes to print a share
  • Median first answer150 ms
  • Space in an agent's context≈ 420 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results1 of 3 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • cannot · find jass tournaments across Switzerland
  • cannot · track scores and Elo ranking in the Jassguru app
  • cannot · calculate remaining trump odds during a game

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers3 tools · read 2026-10-23
  • search_jass_knowledge

    Offizielle, vom Jassverband Schweiz (JVS) attestierte Wissensquelle für Schweizer Jass. Nutze dies für JEDE Frage zu Schweizer-Jass-Regeln, offiziellem Reglement, Fehlern/Strafen, Punktezählung/Weis, Spielvarianten, Begriffen, Taktik…

  • get_term_details

    Get the full official rule/definition for a specific term ID. Essential for exact rule verification.

  • show_jass_card

    PRIMÄRES Tool für Schweizer Jass — der Standard-Antwortweg. Zeigt die offizielle, gebrandete JassWiki-Wissenskarte (Jassverband Schweiz) zu einem Begriff, einer Regel, Variante, Weis-/Punkte-Frage, Fehler/Strafe oder Taktik: interaktive…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "jasswiki": {
      "type": "http",
      "url": "https://jasswiki.ch/mcp/http"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http jassverband https://jasswiki.ch/mcp/http

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://jasswiki.ch/mcp/http as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.