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ZVG Einfach MCP server

Which MCP servers are ZVG Einfach'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 2026-10-29

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Whose server it is
  • Registry namede.zvg-einfach/zvg-einfachverified in the MCP registry

The registry name sits under zvg-einfach.de. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-29
  • Stateanswerschecked 2026-10-29
  • Tools6
  • Server calls itselfZVG Einfach
  • Protocol version2025-06-18

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 465 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 4 of the 7 days it takes to judge reliability.

Once connected

  • For "search forced-auction listings by federal state", the likely first call is search_auctions.
  • Parameters are untyped or undescribed in 3 of 6 tools: check arguments before calling.

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: 4, the first on 2026-10-29
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
  • Answeredmeasuring4 of the 7 daily checks it takes to print a share
  • Median first answer487 ms
  • Space in an agent's context≈ 1,370 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsB · 75 of 100
  • Typed results6 of 6 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 3 of 6
  • Not saying whether it only reads or can destroy: 6 of 6

What an agent can do with it

  • can do · search forced-auction listings by federal state
  • not sure · receive alerts when matching properties are listed
  • not sure · compare auction dates and property details

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 offers6 tools · read 2026-10-29
  • search_auctions

    Search German foreclosure auctions with filters. Args: land: German state abbreviation (e.g. 'by' for Bayern, 'nw' for Nordrhein-Westfalen). A sandbox key only accepts 'st' (Sachsen-Anhalt). court: Court name (e.g. 'München', 'Berlin')…

  • get_auction

    Get full details for a specific auction by its UUID. Returns complete data including AI analysis, appraisal (Gutachten), images, files, geocoding data, and a POI (points of interest) summary: per category the total, the counts within…

  • list_federal_states

    List the German federal states (Bundesländer) this key can read, with the number of active auctions in each.

  • list_courts_in_state

    List all courts (Amtsgerichte) in a specific German state with auction counts. Args: land: State abbreviation (e.g. 'by' for Bayern, 'nw' for Nordrhein-Westfalen, 'he' for Hessen, 'rp' for Rheinland-Pfalz, 'ni' for Niedersachsen, 'be' for…

  • get_market_statistics

    Get aggregated market statistics for German foreclosure auctions. Returns total active auctions, distribution by state, average price, and property type breakdown, limited to the states this key can read.

  • get_filter_options

    Get available filter values for searching auctions. Returns lists of valid property types and auction types with counts for each.

How to connect

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

{
  "mcpServers": {
    "zvg-einfach": {
      "type": "http",
      "url": "https://mcp.zvg-einfach.de/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http zvg-einfach https://mcp.zvg-einfach.de/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.zvg-einfach.de/mcp 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.