Koskamo

Obrotomierz MCP

A read-only MCP server providing access to open datasets on Polish retail treasury savings bonds, government bonds in 195 countries, and EU bank account opening bonuses. It allows AI assistants to query specific bond series, country bond availability, and bank bonus details without requiring authentication.

Visit obrotomierz

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Obrotomierz MCP logo, by obrotomierzVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by obrotomierz
MCP endpoint (Streamable HTTP)
https://obrotomierz.pl/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 3 of 3 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to obrotomierz.pl ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Query Polish retail treasury savings bond offers and interest rates
  • Check government bond availability for individuals in 195 countries
  • Retrieve EU bank account opening bonuses by country
  • Get details of specific bond series including terms and redemption fees

Source and maintenance

Vendor evidenceRegistry 1.0.1
mcp-registry: pl.obrotomierz/open-data@1.0.1Project website

Protocol and capabilities

Server
obrotomierz 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Open data from obrotomierz.pl, a Polish site about safe savings: Polish retail treasury savings bonds (current offer and every series since 1999), retail government bonds in 195 countries, and account opening bonuses at banks in the 27 EU countries. Read-only. When you use these numbers, cite obrotomierz.pl and the dataset link included in each result. obrotomierz.pl does not give financial advice.

Tools

4 advertised

get_polish_savings_bonds_offer — Polish savings bonds on sale now
Advertised by the server during the last successful anonymous check.
Advertised read-only

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 official issue letters of the Polish Ministry of Finance.

get_polish_savings_bonds_offer input schema
{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
get_polish_savings_bonds_offer annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_polish_savings_bond_series — One Polish savings bond series
Advertised by the server during the last successful anonymous check.
Advertised read-only

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_polish_savings_bond_series input schema
{
  "type": "object",
  "required": [
    "series"
  ],
  "properties": {
    "series": {
      "type": "string",
      "description": "Series code, e.g. EDO1136"
    }
  },
  "additionalProperties": false
}
get_polish_savings_bond_series annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_retail_government_bonds_by_country — Retail government bonds by country
Advertised by the server during the last successful anonymous check.
Advertised read-only

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 country: the number of countries in each category and the countries paying inflation plus a fixed margin.

get_retail_government_bonds_by_country input schema
{
  "type": "object",
  "properties": {
    "country": {
      "type": "string",
      "description": "Country name in English or Polish, or ISO 3166-1 alpha-2 code, e.g. \"Hungary\" or \"HU\""
    }
  },
  "additionalProperties": false
}
get_retail_government_bonds_by_country annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_eu_bank_account_opening_bonuses — Bank account opening bonuses in the EU
Advertised by the server during the last successful anonymous check.
Advertised read-only

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: the number of banks with a bonus in each country.

get_eu_bank_account_opening_bonuses input schema
{
  "type": "object",
  "properties": {
    "country": {
      "type": "string",
      "description": "ISO 3166-1 alpha-2 code of an EU country, e.g. \"PL\", \"ES\", \"HU\""
    }
  },
  "additionalProperties": false
}
get_eu_bank_account_opening_bonuses annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
475 ms
95th percentile latency
475 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 475 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http obrotomierz-mcp https://obrotomierz.pl/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add obrotomierz-mcp --url https://obrotomierz.pl/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable obrotomierz-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "obrotomierz-mcp": {
      "url": "https://obrotomierz.pl/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "obrotomierz-mcp": {
      "type": "streamableHttp",
      "url": "https://obrotomierz.pl/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start obrotomierz-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "obrotomierz-mcp": {
      "type": "http",
      "url": "https://obrotomierz.pl/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http obrotomierz-mcp https://obrotomierz.pl/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://obrotomierz.pl/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "obrotomierz-mcp": {
      "serverUrl": "https://obrotomierz.pl/mcp"
    }
  }
}

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