IoMarkets Topup
Travel eSIMs and mobile top-ups paid in USDC via x402.
Runs in the cloud✓ iomarkets.app
AEMET
Overview
Description from the maker (original English)
MCP server exposing AEMET (Spanish weather agency) forecasts, station data and warnings.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new↓ 37/wk · ★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Travel, maps & weather
- You need to fill in: AEMET_API_KEY
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- You fill in yourself:
AEMET_API_KEY
Values marked secret are keys to your account. Never share them or paste them into a chat.
You need
- npmNode.js installed (for the npx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"aemet": {
"command": "npx",
"args": [
"-y",
"@mmillan76/aemet-mcp"
],
"env": {
"AEMET_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add aemet --env AEMET_API_KEY=your-value -- npx -y @mmillan76/aemet-mcpFill in the empty values before running it.
Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"aemet": {
"command": "npx",
"args": [
"-y",
"@mmillan76/aemet-mcp"
],
"env": {
"AEMET_API_KEY": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"aemet": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mmillan76/aemet-mcp"
],
"env": {
"AEMET_API_KEY": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
Values you fill in
- Free AEMET OpenData API key. Request one at https://opendata.aemet.es/centrodedescargas/altaUsuario
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 9, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account mmillan76, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Travel, maps & weatheri
- More stars than 0% of the other 1736 servers in this category
- Published to the registry more recently than 20% of the other 1736 servers in this category
- Basic checks equal to or better than 100% of the other 1736 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is AEMET safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
You need to fill in: AEMET_API_KEY
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 4 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
What can I use instead?
In the same category: IoMarkets Topup, Open Transfer Times, CLIO Geo
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Open Transfer Times
Check if a flight connection is comfortable, tight or risky, with cited airport data.
Runs on your computer
CLIO Geo
MCP server for rendering GeoJSON vector layers into map images with basemaps
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
aemet-mcp
MCP server that exposes public weather data from AEMET (Agencia Estatal de Meteorología, Spain) to AI agents and MCP-compatible clients.
Three tools, well-typed, backed by AEMET's official OpenData API:
- `get_municipality_forecast` — daily forecast (up to 7 days) for a Spanish municipality, by INE code.
- `get_station_observation` — last ~12h of hourly observation data (temperature, wind, precipitation…) from a weather station.
- `get_weather_warnings` — active weather warnings (CAP alerts) for a region or all of Spain.
Prerequisites
- Node.js 20+
- A free AEMET OpenData API key: request one at https://opendata.aemet.es/centrodedescargas/altaUsuario
Installation
No install needed — run it directly with npx:
npx -y @mmillan76/aemet-mcpThe server communicates over stdio, so it's meant to be launched by an MCP client rather than run standalone in a terminal.
Configuration
The server reads the API key from the AEMET_API_KEY environment variable. It exits with an error at startup if it's missing.
Claude Desktop / Claude Code
Add to your MCP client config (e.g. claude_desktop_config.json):
{"mcpServers": { "aemet": { "command": "npx", "args": ["-y", "@mmillan76/aemet-mcp"], "env": { "AEMET_API_KEY": "your-api-key-here" } } } }
Any other MCP client that supports stdio servers works the same way — point it at npx -y @mmillan76/aemet-mcp with AEMET_API_KEY set in the environment.
Local development
git clone https://github.com/mmillan76/aemet-mcp.gitcd aemet-mcp npm install cp .env.example .env # fill in AEMET_API_KEY npm run build
Test tool calls interactively with the MCP Inspector:
npx @modelcontextprotocol/inspector node dist/index.js(the Inspector reads AEMET_API_KEY from your shell environment, so export it — or source .env — before running the command above)
Notes on the AEMET API
AEMET OpenData uses a two-step pattern on every endpoint: the first request returns a JSON envelope with a datos URL, not the actual data; a second request to that URL returns the real payload. This server hides that detail — tools just return the final data. Rate limits apply per API key; if you hit them, the tool returns a clear error instead of retrying silently.
License
MIT — see LICENSE.