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Weather MCP Server

answering

Weather is answering right now. Last checked 8 min ago. 47 installs a week from npm. It exposes 3 tools. Last commit 25 Oct 2026.

US NWS weather alerts and 5-day forecasts for AI agents. $0.01 per call.

Installs per day peak 47 · avg 1
a month agotoday
Uptime history 31 days of history · worst day 0%
31 days agonow
100.0%
Uptime 24h
182 of 182 checks
3
Tools
read from the server
752 ms
Response time
average over 24h
47
Installs / week
npm and PyPI

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 19 October 2026. No other catalogue keeps this.

23 Oct a tool changed version4 times that day
19 Oct a tool changed version
18 Oct 2 tool descriptions were rewritten get-alerts, get-forecast
and 3 more, back to 19 October 2026

Weather missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add weather --transport http https://agent-evidence-api.thx93.workers.dev/weather/mcp
Settings → Connectors → Add custom connector, then paste this address
https://agent-evidence-api.thx93.workers.dev/weather/mcp
~/.codex/config.toml
[mcp_servers.weather]
url = "https://agent-evidence-api.thx93.workers.dev/weather/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "weather": {
      "url": "https://agent-evidence-api.thx93.workers.dev/weather/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "weather": {
      "type": "http",
      "url": "https://agent-evidence-api.thx93.workers.dev/weather/mcp"
    }
  }
}

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

alerts
get-alerts
Get active weather alerts for a US state. Give the two-letter state code (for example CA or NY) and get every active National Weather Service alert for it: the event type, the area it covers, its severity, what is happening, and the official instruction. US locations only. No API key and no account: discovery is free, a call costs $0.01 in USDC on Base via x402, and nothing is charged when the request returns no data. Free tools: health and tools/list.
forecast
get-forecast
Get the weather forecast for a point on the map. Give latitude and longitude and get the next five forecast periods for it: the period name, its temperature, wind speed and direction, and the plain-language forecast. US locations only. No API key and no account: discovery is free, a call costs $0.01 in USDC on Base via x402, and nothing is charged when the request returns no data. Free tools: health and tools/list.
health
health
Check that the service is up. Costs nothing.

Endpoints

URLTransportStateLatencyChecked
https://agent-evidence-api.thx93.workers.dev/weather/mcp streamable-http answering 558 ms 8 min ago
https://agent-evidence.thx93.dev/weather/mcp streamable-http answering 501 ms 8 min ago

Alternatives to Weather

same job, measured the same way
Weather Alerts & Forecast
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US NWS alerts by state and short-term (next 5 periods) point forecasts.

local only
Nws Weather MCP Server
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Get US weather forecasts, active alerts, and current observations.

421 installs/wk 10 tools answering
Weather Intel MCP
by datakoot

US weather, alerts, earthquakes and elevation for AI agents, from NWS/NOAA and USGS. No API keys.

6 tools answering
Weather MCP
by mrfentmen

Unified weather server: NWS forecasts and alerts, USGS earthquakes, and FEMA disasters.

26 installs/wk local only
Weather & Geo Intel MCP
by datakoot

US weather & geo for AI agents: forecasts, alerts, earthquakes, elevation, geocoding. No keys.

6 tools answering
Weatherbit MCP
by mrfentmen

Weatherbit API: current weather, forecasts, alerts, air quality.

28 installs/wk local only
Xweather Weather MCP
by xweather

Hosted MCP server for Xweather weather data: conditions, forecasts, alerts, and more.

answering
S
ScrapeMole Pulse
by pages-scrapemole

x402 FX, time, weather, US NWS alerts, HN, holidays, geocoding for agents.

17 tools answering

Weather — questions

Answers built from our own checks of this server.

What can Weather do?
It exposes 3 tools, read directly from the server on our last check. Among them: get-alerts, get-forecast, health. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Weather working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 182 of 182 checks got a reply (100.0%), average response time 752 ms. The bar chart above shows every period we have measured.
How do I connect Weather?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Weather need an API key?
No. Weather completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Weather?
It answers our handshake in 752 ms on average, which is faster than 13% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Weather?
The npm package @thx93/mcp-weather-server was installed 47 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Weather open source?
The code is open source: it is published under the ISC licence, written in JavaScript and 1 stars on GitHub. The licence covers the code in the repository, not the hosted service at agent-evidence-api.thx93.workers.dev, which runs on its operator's own terms.