# MRVN DE Open Data MCP (remote · de-opendata-mcp.pages.dev)

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

- Trust score: 69/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `de-opendata-mcp.pages.dev`: 69/100 (this document), [markdown](https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp.md), [page](https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp)

## Channel facts

- Endpoint: `https://de-opendata-mcp.pages.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 12 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 65/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 1252 tokens (~104/item across 12 items; 12 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 67/100
  - Stability observed for 20 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 82/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 45% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the MRVN DE Open Data MCP server?

MRVN DE Open Data MCP is a hosted endpoint at https://de-opendata-mcp.pages.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http marvinsmx-mrvn-de-opendata-mcp 'https://de-opendata-mcp.pages.dev/mcp'
```

### Cursor

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

### VS Code

```json
{
  "servers": {
    "marvinsmx-mrvn-de-opendata-mcp": {
      "type": "http",
      "url": "https://de-opendata-mcp.pages.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.marvinsmx-mrvn-de-opendata-mcp]
url = "https://de-opendata-mcp.pages.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "marvinsmx-mrvn-de-opendata-mcp": {
      "type": "remote",
      "url": "https://de-opendata-mcp.pages.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add marvinsmx-mrvn-de-opendata-mcp --url 'https://de-opendata-mcp.pages.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  marvinsmx-mrvn-de-opendata-mcp:
    url: "https://de-opendata-mcp.pages.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "marvinsmx-mrvn-de-opendata-mcp": {
      "Transport": "http",
      "Url": "https://de-opendata-mcp.pages.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add marvinsmx-mrvn-de-opendata-mcp -t streamable-http -u 'https://de-opendata-mcp.pages.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "marvinsmx-mrvn-de-opendata-mcp": {
      "type": "http",
      "url": "https://de-opendata-mcp.pages.dev/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (12)

### `tender_search_notices` (~212 tokens)

Search/filter German public procurement notices by keyword, CPV, Bundesland, type, buyer, value, published date, or submission deadline. [German public procurement (oeffentlichevergabe.de, CC0)]

Input parameters:

- `buyer` (string)
- `category` (string)
- `cpv` (string): Comma-separated CPV codes or prefixes
- `end_after` (string): Submission deadline on/after
- `end_before` (string): Submission deadline on/before
- `fields` (string)
- `from` (string)
- `land` (string): Comma-separated Bundesland codes (BW,BY,…)
- `limit` (integer)
- `max_value` (number)
- `min_value` (number)
- `offset` (integer)
- `postal_prefix` (string)
- `q` (string): Keywords (all must match)
- `sort` (string)
- `to` (string)
- `type` (string)

### `tender_get_notice` (~46 tokens)

Get one notice by notice id or OCID. [German public procurement (oeffentlichevergabe.de, CC0)]

Input parameters:

- `id` (string, required): Notice id or OCID

### `tender_get_stats` (~43 tokens)

Aggregate counts by type, category, Bundesland and CPV division over the current data window. [German public procurement (oeffentlichevergabe.de, CC0)]

### `tender_health` (~38 tokens)

Service status and data freshness (notice count, data_window, updated_at). [German public procurement (oeffentlichevergabe.de, CC0)]

### `mastr_search_units` (~204 tokens)

Search/filter MaStR energy units by PLZ, type, status, capacity (kW), Bundesland, or keyword. [German MaStR energy units (DL-DE-BY-2.0, © Bundesnetzagentur)]

Input parameters:

- `einheitentyp` (string): Comma-separated numeric Einheitentyp codes
- `fields` (string)
- `land` (string): Comma-separated Bundesland codes (BW,BY,…)
- `limit` (integer)
- `max_kw` (number)
- `min_kw` (number)
- `offset` (integer)
- `plz` (string): Exact PLZ or prefix
- `q` (string): Keywords (all must match)
- `sort` (string)
- `status` (string): Comma-separated Betriebsstatus substrings
- `type` (string): Comma-separated type slugs (solar, wind, …) or Energieträger substrings

### `mastr_get_unit` (~61 tokens)

Get one unit by MaStR Einheit number (e.g. SEE…). [German MaStR energy units (DL-DE-BY-2.0, © Bundesnetzagentur)]

Input parameters:

- `mastr_id` (string, required): MaStR Einheit number

### `mastr_get_stats` (~46 tokens)

Aggregate counts by type, status and Bundesland over the current snapshot. [German MaStR energy units (DL-DE-BY-2.0, © Bundesnetzagentur)]

### `mastr_health` (~45 tokens)

Service status and data freshness (unit count, updated_at, license). [German MaStR energy units (DL-DE-BY-2.0, © Bundesnetzagentur)]

### `ladesaeulen_search_stations` (~332 tokens)

Search/filter German EV charging stations by PLZ, Bundesland, power (kW), fast/normal, plug type, operator, payment, city, radius around lat/lon, or bounding box. [German EV charging stations (Ladesäulenregister, CC BY 4.0, Bundesnetzagentur.de)]

Input parameters:

- `bbox` (string): minLon,minLat,maxLon,maxLat
- `commissioned_after` (string)
- `fields` (string)
- `land` (string): Comma-separated Bundesland codes (BW,BY,…)
- `lat` (number): Radius search center (with lon)
- `limit` (integer)
- `lon` (number)
- `max_kw` (number)
- `min_kw` (number)
- `offset` (integer)
- `open_24_7` (boolean)
- `operator` (string): Operator substring, e.g. ionity, tesla, enbw
- `ort` (string): City name (prefix match)
- `payment` (string): Payment substring, e.g. kreditkarte, plug & charge, kostenlos
- `plug` (string): Plug type substring: ccs, chademo, typ 2, mcs
- `plz` (string): PLZ or prefix, e.g. 10115 or 80
- `q` (string): Free text over operator, name, city, street, PLZ, Kreis
- `radius_km` (number)
- `sort` (string)
- `type` (string)

### `ladesaeulen_get_station` (~59 tokens)

Get one charging station by Ladeeinrichtungs-ID. [German EV charging stations (Ladesäulenregister, CC BY 4.0, Bundesnetzagentur.de)]

Input parameters:

- `id` (string, required): Ladeeinrichtungs-ID

### `ladesaeulen_get_stats` (~64 tokens)

Aggregates by Bundesland, kW bucket, plug type and top operators. [German EV charging stations (Ladesäulenregister, CC BY 4.0, Bundesnetzagentur.de)]

Input parameters:

- `land` (string): Optional Bundesland code filter

### `ladesaeulen_health` (~49 tokens)

Service status and data freshness (station count, data date, license). [German EV charging stations (Ladesäulenregister, CC BY 4.0, Bundesnetzagentur.de)]

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 68
- 2026-11-03: 68
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 66
- 2026-10-30: 66
- 2026-10-29: 65
- 2026-10-28: 65
- 2026-10-27: 65
- 2026-10-26: 64
- 2026-10-25: 64
- 2026-10-24: 63
- 2026-10-23: 63
- 2026-10-22: 62
- 2026-10-21: 62
- 2026-10-20: 61
- 2026-10-19: 61
- 2026-10-18: 60
- 2026-10-17: 60
- 2026-10-16: 59

## Common questions

### What is the MRVN DE Open Data MCP server?

MRVN DE Open Data MCP is listed in the public MCP registry as io.github.MarvinSMX/mrvn-de-opendata-mcp. MRVN: German public tenders, MaStR energy units and EV charging stations via your RapidAPI key. This page covers its hosted endpoint (https://de-opendata-mcp.pages.dev/mcp).

### Is the MRVN DE Open Data MCP server safe to use?

MRVN DE Open Data MCP scores 69 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the MRVN DE Open Data MCP server expose?

MRVN DE Open Data MCP exposes 12 tools: tender_search_notices, tender_get_notice, tender_get_stats, tender_health, mastr_search_units, and 7 more. Their descriptions and schemas cost roughly 1,199 tokens of context every time the server is loaded.

### Does the MRVN DE Open Data MCP server require authentication?

No. We connected to MRVN DE Open Data MCP without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the MRVN DE Open Data MCP server still maintained?

MRVN DE Open Data MCP is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What did VerifyMCP test on the MRVN DE Open Data MCP server?

VerifyMCP ran 12 checks on MRVN DE Open Data MCP, covering TLS certificate, HTTPS, HSTS header, DNSSEC and 8 more. One item could not be completed, a gap on our side rather than a finding about MRVN DE Open Data MCP: Authorization. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://de-opendata-mcp.pages.dev/mcp
- Authorisation metadata: https://de-opendata-mcp.pages.dev/.well-known/oauth-protected-resource/mcp
- Repository: https://github.com/MarvinSMX/mrvn-de-opendata-mcp
- Website: https://de-opendata-mcp.pages.dev/
- Changelog RSS feed: https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp.json
- HTML version of this page: https://verifymcp.io/servers/marvinsmx-mrvn-de-opendata-mcp/de-opendata-mcp