# Knmi (npm · @pipeworx/mcp-knmi)

KNMI Data Platform (Open Data API) MCP.

- Trust score: 82/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 77/100, [markdown](https://verifymcp.io/servers/pipeworx-io-knmi/knmi-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-knmi/knmi-mcp)
- npm · `@pipeworx/mcp-knmi`: 82/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-knmi/pipeworx-mcp-knmi.md), [page](https://verifymcp.io/servers/pipeworx-io-knmi/pipeworx-mcp-knmi)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-knmi`
- Version: `0.2.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-knmi).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 2 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 62/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 789 tokens (~263/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Knmi MCP server?

Knmi runs locally as an npm package, launched with npx -y @pipeworx/mcp-knmi. 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 pipeworx-io-knmi -- npx -y @pipeworx/mcp-knmi
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-knmi": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-knmi"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-knmi": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-knmi"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-knmi -- npx -y @pipeworx/mcp-knmi
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-knmi": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-knmi"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-knmi --command npx --arg -y --arg @pipeworx/mcp-knmi
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-knmi:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-knmi"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-knmi": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-knmi"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-knmi -t stdio -c npx -a -y @pipeworx/mcp-knmi
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-knmi": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-knmi"
      ]
    }
  }
}
```

## 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 82, +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.

### 2026-11-03 (score 81, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-11-02 (score 65, −14)

- [security regression] Malware scan: pass → unverified
- [functional improvement] Stability: unverified → 0.13
- [functional] Package version: 0.2.0 → 0.2.1

### 2026-10-31 (score 79, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-29 (score 79)

First indexed and scored.

## MCP tools (3)

### `knmi_datasets` (~242 tokens)

The KNMI Data Platform datasets worth calling, with what each one contains, how often it updates and its file format — and, checked live, the timestamp of its newest file. AUTHORITATIVE starting point for Dutch weather and climate data: KNMI is the Netherlands national weather service. Use this to find the exact dataset name and version string that knmi_dataset_files needs, because those names are opaque (e.g. "Tg1", "EV24", "harmonie_arome_cy43_p1") and the Open Data API has no listing endpoint of its own. Search for "radar", "observations", "forecast", "precipitation", "temperature", "evaporation".

Input parameters:

- `limit` (number): Max datasets to return (default 5, max 11). Each one costs an upstream call when verify is true.
- `search` (string): Case-insensitive substring matched against dataset name and description, e.g. "radar".
- `verify` (boolean): Check each matched dataset live and report its newest file and timestamp (default true). Set false to skip the upstream calls and just read the registry.

### `knmi_dataset_files` (~281 tokens)

List the files in one KNMI Data Platform dataset, newest first by default. Returns filename, size in bytes, creation and last-modified timestamps, plus a page token. This is how you find the most recent radar composite, observation file or model run before downloading it. Get dataset and version from knmi_datasets, e.g. dataset "10-minute-in-situ-meteorological-observations" version "1.0", or dataset "radar_reflectivity_composites" version "2.0".

Input parameters:

- `begin` (string): Only with order_by "filename": start listing alphabetically after this filename.
- `dataset` (string, required): KNMI dataset name, e.g. "10-minute-in-situ-meteorological-observations". Case-sensitive.
- `max_keys` (number): Files per page (default 10, max 100).
- `order_by` (string): Sort field: "created" (default here), "lastModified" or "filename".
- `page_token` (string): nextPageToken from a previous call, to fetch the following page.
- `sorting` (string): "desc" for newest first (default here) or "asc".
- `version` (string, required): Dataset version string, e.g. "1.0", "2.0", "1", "5".

### `knmi_file_url` (~214 tokens)

Mint a temporary download URL for one file in a KNMI Data Platform dataset. Returns the signed URL, the content type, the byte size and when the file was last modified. The URL is short-lived and must be used promptly. Pass a filename from knmi_dataset_files, e.g. dataset "radar_reflectivity_composites" version "2.0" filename "RAD_NL25_PCP_NA_202609172205.h5". Note the files are scientific binaries (NetCDF, HDF5, GRIB in tar) — this hands back a link to fetch, it does not decode them.

Input parameters:

- `dataset` (string, required): KNMI dataset name, e.g. "radar_reflectivity_composites".
- `filename` (string, required): Exact filename from knmi_dataset_files, e.g. "RAD_NL25_PCP_NA_202609172205.h5".
- `version` (string, required): Dataset version string, e.g. "2.0".

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-knmi/pipeworx-mcp-knmi#diagnostics

## Score history

- 2026-11-05: 82
- 2026-11-04: 81
- 2026-11-03: 81
- 2026-11-02: 65
- 2026-11-01: 79
- 2026-10-31: 79
- 2026-10-30: 79
- 2026-10-29: 79

## Common questions

### What is the Knmi MCP server?

Knmi is an MCP server listed in the public MCP registry as io.github.pipeworx-io/knmi. KNMI Data Platform (Open Data API) MCP. This page covers its npm package (@pipeworx/mcp-knmi).

### Is the Knmi MCP server safe to use?

Knmi scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 Knmi MCP server expose?

Knmi exposes 3 tools: knmi_datasets, knmi_dataset_files, knmi_file_url. Their descriptions and schemas cost roughly 737 tokens of context every time the server is loaded.

### Is the Knmi MCP server still maintained?

Knmi 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 licence is the Knmi MCP server under?

Knmi declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-knmi
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-knmi
- Repository: https://github.com/pipeworx-io/mcp-knmi
- Website: https://pipeworx.io/packs/knmi
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-knmi/pipeworx-mcp-knmi.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-knmi/pipeworx-mcp-knmi.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-knmi/pipeworx-mcp-knmi