Is io.github.trondbjoroy/met-mcp safe to use?

io.github.trondbjoroy/met-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install io.github.trondbjoroy/met-mcp?

Install io.github.trondbjoroy/met-mcp via npm: `npx met-mcp`. Then add it to your MCP client config file.

What AI clients work with io.github.trondbjoroy/met-mcp?

io.github.trondbjoroy/met-mcp is compatible with claude-desktop, cursor, claude-code. It uses http and stdio transport.

Is io.github.trondbjoroy/met-mcp actively maintained?

io.github.trondbjoroy/met-mcp is actively maintained — last commit was 0 days ago.

io.github.trondbjoroy/met-mcp

met-mcp

Weather forecasts from MET Norway (Yr): geocoding plus hourly forecasts worldwide.

410/wk GitHub npm

No known CVEs

MIT license

Actively maintained

Last commit 0d ago

Works with most clients

Transport: http, stdio

0 tools

Grade F

MCPpedia last refreshed this data 5h ago

Edit this pageView history

io.github.trondbjoroy/met-mcp is an MCP server that weather forecasts from MET Norway (Yr): geocoding plus hourly forecasts worldwide. Its tool list has not been published yet over http and stdio, requires no API key, and scores 55/100 on MCPpedia's security, maintenance and efficiency rubric.

Maps & Geo

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktophttp, stdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-trondbjoroy-met-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "met-mcp"
      ]
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-trondbjoroy-met-mcp)](https://mcppedia.org/s/io-github-trondbjoroy-met-mcp)

Read me

What io.github.trondbjoroy/met-mcp does

Weather forecasts from MET Norway (Yr): geocoding plus hourly forecasts worldwide.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'met-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

55/100across 5 weighted dimensions

How we score →

0255075100

−45

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked met-mcp against OSV.dev.

Help improve this page

This server is missing a description. Tools and install config are also missing.If you've used it, help the community.

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.trondbjoroy/met-mcp safe to use?: io.github.trondbjoroy/met-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install io.github.trondbjoroy/met-mcp?: Install io.github.trondbjoroy/met-mcp via npm: `npx met-mcp`. Then add it to your MCP client config file.
What AI clients work with io.github.trondbjoroy/met-mcp?: io.github.trondbjoroy/met-mcp is compatible with claude-desktop, cursor, claude-code. It uses http and stdio transport.
Is io.github.trondbjoroy/met-mcp actively maintained?: io.github.trondbjoroy/met-mcp is actively maintained — last commit was 0 days ago.

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Maps & Geo

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktophttp, stdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-trondbjoroy-met-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "met-mcp"
      ]
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-trondbjoroy-met-mcp)](https://mcppedia.org/s/io-github-trondbjoroy-met-mcp)

Read me

What io.github.trondbjoroy/met-mcp does

Weather forecasts from MET Norway (Yr): geocoding plus hourly forecasts worldwide.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'met-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

met-mcp

An MCP server for weather forecasts from MET Norway (Yr). Built as a learning project.

Available three ways:

npm: met-mcp — run locally over stdio
Remote: https://met-mcp.met-mcp-worker.workers.dev/mcp — Streamable HTTP on Cloudflare Workers, add it as a claude.ai connector
MCP registry: io.github.trondbjoroy/met-mcp

Tools

geocode_location(name, count) — find coordinates for a place name. Uses the free Open-Meteo geocoder, because MET has no geocoding API.
get_forecast(latitude, longitude, hours) — hourly forecast from MET Locationforecast 2.0. Works worldwide, best in the Nordics.
get_nowcast(latitude, longitude) — radar-based precipitation for the next 2 hours. Nordics only.
get_weather_alerts(latitude?, longitude?) — official Norwegian danger warnings (MetAlerts). Omit coordinates for all of Norway.
get_sun_events(latitude, longitude, date, utc_offset) — sunrise, sunset, and solar noon. Worldwide.
get_ocean_forecast(latitude, longitude, hours) — wave height and sea temperature along the Norwegian coast.
find_weather_stations(latitude, longitude, count) — nearest official weather stations (Frost).
get_historical_weather(station_id, from, to, elements) — daily historical observations from the Frost archive; some stations go back over 100 years.

The two Frost tools need a free client ID from https://frost.met.no/auth/requestCredentials.html, set as the FROST_CLIENT_ID env var (or a Cloudflare secret for the worker). The other tools need nothing.

Tool definitions live in src/tools.ts, shared between the stdio server and the worker.

Build and test

npm install
npm run build
npm test

The test spawns the server over stdio and calls both tools against the live APIs.

Use with Claude Code

claude mcp add met-weather -- node C:\Users\trond\met-mcp\dist\index.js

Then ask Claude: "What is the weather in Bergen tomorrow?"

MET terms of service

Send an identifying User-Agent with contact info. Set the MET_USER_AGENT env var, e.g. met-mcp/0.1.0 you@example.com.
Send at most 4 decimals in coordinates. The server rounds for you.
Data license: NLOD / CC BY 4.0. Credit MET Norway when you show the data.

Remote version

worker/ holds the Cloudflare Workers deployment: the same two tools served over MCP Streamable HTTP with createMcpHandler (MCP SDK v2). Develop with npm run dev, ship with npm run deploy (both from worker/).

How it works

src/index.ts is the whole server. It speaks MCP over stdio: JSON-RPC on stdin/stdout.
Each tool declares an input schema with Zod. The MCP client (Claude) reads the schema and validates arguments.
Tool results are content blocks. This server returns JSON as text, trimmed to what an LLM needs — the raw MET response has ~90 timesteps with far more fields.
Never write to stdout with console.log. It corrupts the protocol stream. Log to stderr.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

55/100across 5 weighted dimensions

How we score →

0255075100

−45

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked met-mcp against OSV.dev.

Help improve this page

This server is missing a description. Tools and install config are also missing.If you've used it, help the community.

Add information

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.trondbjoroy/met-mcp safe to use?: io.github.trondbjoroy/met-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install io.github.trondbjoroy/met-mcp?: Install io.github.trondbjoroy/met-mcp via npm: `npx met-mcp`. Then add it to your MCP client config file.
What AI clients work with io.github.trondbjoroy/met-mcp?: io.github.trondbjoroy/met-mcp is compatible with claude-desktop, cursor, claude-code. It uses http and stdio transport.
Is io.github.trondbjoroy/met-mcp actively maintained?: io.github.trondbjoroy/met-mcp is actively maintained — last commit was 0 days ago.