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Obrotomierz MCP server

Which MCP servers are Obrotomierz'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 2026-11-02

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Whose server it is
  • Registry namepl.obrotomierz/open-dataverified in the MCP registry

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

When we asked itchecked 2026-11-02
  • Stateanswerschecked 2026-11-02
  • Tools4
  • Server calls itselfobrotomierz
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-11-02 the server answered initialize and tools/list without a sign-in. First answer in 381 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 1 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: 1, the first on 2026-11-02
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer165 ms
  • Space in an agent's context≈ 506 tokensthe definitions of all its tools (4), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results0 of 4 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

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 offers4 tools · read 2026-11-02
  • get_polish_savings_bonds_offer

    Polish retail treasury savings bonds (obligacje oszczędnościowe Skarbu Państwa: OTS, ROR, DOR, TOS, COI, EDO, ROS, ROD) currently on sale: series code, term, first-period interest rate, inflation margin and early redemption fee, from the…

  • get_polish_savings_bond_series

    Details of one Polish retail treasury savings bond series by its code (for example EDO1136 or COI1130): terms, margin, early redemption fee and the interest rate in every interest period that has started.

  • get_retail_government_bonds_by_country

    Whether a country sells government bonds to individuals at issue and how they pay (inflation plus a fixed margin, market real rate, fixed, floating, step-up or prize), for all 195 countries, with the official source for each. Without a…

  • get_eu_bank_account_opening_bonuses

    Banks in the 27 EU countries that pay a cash bonus for opening a personal current account, read one by one from bank websites, with the amount, deadline and source page. With a country code: every bank paying a bonus there. Without it…

How to connect

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

{
  "mcpServers": {
    "open-data": {
      "type": "http",
      "url": "https://obrotomierz.pl/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http obrotomierz https://obrotomierz.pl/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://obrotomierz.pl/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.