Is Mrvn De Opendata free?

Yes, Mrvn De Opendata is free to use.

How do I install Mrvn De Opendata?

Mrvn De Opendata is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Is Mrvn De Opendata safe to use?

Yes. Mrvn De Opendata passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Mrvn De Opendata?

Mrvn De Opendata uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Mrvn De Opendata MCP Server

by MarvinSMX

Developer ToolsLow Risk10.0MCP RegistryRemote

Free

Server data from the Official MCP Registry

MRVN: German public tenders, MaStR energy units and EV charging stations via your RapidAPI key.

About

MRVN: German public tenders, MaStR energy units and EV charging stations via your RapidAPI key.

Remote endpoints: streamable-http: https://de-opendata-mcp.pages.dev/mcp

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.

12 tools verified · Open access · No issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

file_system

Applies to the server that hosts this plugin, not to your machine.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "io-github-marvinsmx-mrvn-de-opendata-mcp": {
      "url": "https://de-opendata-mcp.pages.dev/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

MRVN DE Open Data MCP

By MRVN.

Remote MCP server (Streamable HTTP, stateless) giving AI agents access to German open data:

Public procurement notices from oeffentlichevergabe.de – search by keyword, CPV code, Bundesland, value, deadline.
Energy units from the Marktstammdatenregister (MaStR) of the Bundesnetzagentur – solar, wind, storage etc., by location, technology, capacity.
EV charging stations from the Ladesäulenregister of the Bundesnetzagentur – by PLZ, Bundesland, power (kW), plug type, operator, radius or bounding box.

Endpoint: https://de-opendata-mcp.pages.dev/mcp · Landing page: https://de-opendata-mcp.pages.dev/

Tools (12)

Tool	Purpose
`tender_search_notices`	Search procurement notices
`tender_get_notice`	Get one notice by ID
`tender_get_stats`	Aggregate tender stats
`tender_health`	Data freshness / health
`mastr_search_units`	Search MaStR energy units
`mastr_get_unit`	Get one unit by MaStR number
`mastr_get_stats`	Aggregate unit stats
`mastr_health`	Data freshness / health
`ladesaeulen_search_stations`	Search EV charging stations
`ladesaeulen_get_station`	Get one station by Ladeeinrichtungs-ID
`ladesaeulen_get_stats`	Aggregate station stats
`ladesaeulen_health`	Data freshness / health

tools/list works without a key. Tool calls require your own RapidAPI key, subscribed to DE Tender Query, DE MaStR Units and/or DE Ladesäulen Query. Each has a free BASIC plan (100 requests/day); paid plans exist for higher volume. Your key is forwarded only to the RapidAPI gateway and is not stored.

Config

{
  "mcpServers": {
    "de-opendata": {
      "type": "http",
      "url": "https://de-opendata-mcp.pages.dev/mcp",
      "headers": { "X-RapidAPI-Key": "YOUR_RAPIDAPI_KEY" }
    }
  }
}

Authorization: Bearer <key> is also accepted.

Step-by-step setup for Cline, Cursor, Claude Code and Claude Desktop (incl. the mcp-remote stdio bridge / Dockerfile for clients without remote support): see llms-install.md.

Source

worker.src.js is the Cloudflare Pages worker (JSON-RPC over POST /mcp, protocol versions 2025-06-18 / 2025-03-26 / 2024-11-05). build-tools.mjs injects tool definitions (tools.generated.json); smoke.mjs runs a smoke test against a URL.

OpenAPI specs (REST via RapidAPI)

The three backing REST APIs are described in openapi/ (OpenAPI 3.0.3, server = RapidAPI gateway, header X-RapidAPI-Key):

openapi/de-tender-query.openapi.yaml: German public procurement notices
openapi/de-mastr-units.openapi.yaml: MaStR energy units
openapi/de-ladesaulen-query.openapi.yaml: EV charging stations (Ladesäulenregister)

License & data attribution

Code: MIT (see LICENSE).
Procurement data: oeffentlichevergabe.de, published under CC0 1.0.
EV charging station data: Bundesnetzagentur.de, Ladesäulenregister, CC BY 4.0; reformatted.
MaStR data: © Bundesnetzagentur – Marktstammdatenregister (MaStR), https://www.marktstammdatenregister.de/MaStR/Datendownload. License: Datenlizenz Deutschland – Namensnennung – Version 2.0 (dl-de/by-2-0), https://www.govdata.de/dl-de/by-2-0. Data modified (normalized). Not an official service.

Privacy

The server keeps an anonymous per-tool call counter: one count per tools/call per tool name per UTC day (Workers KV). No IPs, API keys, user agents or arguments are stored. Your RapidAPI key is only forwarded to the RapidAPI gateway.

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