Weather

io.github.eudoroolivares2016Published by GitHub account eudoroolivares2016v1.2.1Updated Oct 24, 2026

An MCP server for weather information updating this value now.

VerifiedSTDIODesktop onlyLocation & Lifestyle

Overview

AI-generated overview

A minimal local MCP server that gives an assistant US National Weather Service forecasts by coordinates and active weather alerts by state.

What you can do
  • Get a forecast for a location from latitude and longitude
  • Get active weather alerts for a US state from its two-letter code
  • Both tools return structured content defined by output schemas
When to use it
Useful when you want an assistant to look up US forecasts or current weather alerts while working locally, for example in a chat client or a tutorial setup. It is a small example server rather than a full weather platform.
Requirements
Runs locally over stdio as the npm package @eudoroolivares/mcp-weather-server. Needs Node.js 24 or newer and npm to install and build, plus network access to the National Weather Service API. No accounts, API keys, environment variables or headers are declared.
Before you install
Coverage is limited to US data from the National Weather Service, so locations outside the US are not supported. Requests go to that third-party public API. The server is read-only and declares no credentials.

Installation

In SourceWeft

  1. Open Weather in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

A Simple MCP Weather Server written in TypeScript

A minimal MCP server that exposes US weather data from the National Weather Service API as two tools:

  • get-forecast – get the forecast for a location (takes latitude and longitude)
  • get-alerts – get active weather alerts for a US state (takes a two-letter state code)

This example accompanies the Build an MCP server tutorial.

Prerequisites

  • Node.js 24+
  • npm

Build and run

bash
npm installnpm run buildnode build/index.js

The server communicates over stdio, so running it directly just waits for a client on stdin. To see it in action, launch it from one of the client examples in this repository, for example:

bash
cd ../mcp-client-typescriptnpm install && npm run buildnode build/index.js ../weather-server-typescript/build/index.js

Structured content

Both tools declare an outputSchema and return structuredContent. get-forecast returns an object; get-alerts returns a top-level JSON array, which protocol revision 2026-07-28 is the first to allow — see Structured Content in the spec.

serveStdio serves both protocol eras from one factory, and the SDK projects the array-rooted schema down to the {"result": [...]} form for a 2025-11-25 client, so adopting it costs older clients nothing. See the SDK documentation.

Source: weather-server-typescript/README.md at commit 55f75f3

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.2.1LatestSep 16, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

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  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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