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Weather MCP Server

MCP Server

Instant weather data for any location via MCP

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Updated Apr 16, 2025

About

A lightweight Model Context Protocol server that fetches current weather information from the free wttr.in API, enabling AI agents like Claude to retrieve real‑time conditions for any location without an API key.

Capabilities

Resources
Access data sources
Tools
Execute functions
Prompts
Pre-built templates
Sampling
AI model interactions

Basic MCP Server Overview

Overview

The BasicMCPServer is a lightweight, reference implementation of the Model Context Protocol (MCP). It addresses the common pain point of integrating AI assistants with external systems by providing a standardized, protocol‑driven interface that exposes data resources, callable tools, custom prompts, and sampling strategies. Developers can quickly spin up a server that turns any backend service—whether it’s a database, an API gateway, or a simple file store—into a first‑class AI tool without writing bespoke adapters for each assistant.

At its core, the server implements the MCP specification’s four principal capabilities. The resource endpoint allows an assistant to retrieve structured data, such as lists of products or configuration settings, in a predictable JSON format. The tool interface exposes procedural functions that the assistant can invoke with arguments; for example, a “create‑invoice” tool could accept line items and return a PDF URL. The prompt service lets developers supply context‑specific prompt templates that the assistant can use to format its responses, while the sampling endpoint offers fine‑grained control over generation parameters like temperature and token limits. By bundling these capabilities together, the server eliminates fragmentation and ensures that every assistant interaction follows a single, well‑documented contract.

Developers find the BasicMCPServer valuable because it removes boilerplate integration work. Rather than writing custom SDKs for each AI platform, they can register the server’s URL with any MCP‑compliant client—Claude, Gemini, or others—and immediately gain access to a rich set of tools. The server’s configuration is intentionally minimal; it ships with sensible defaults and can be extended through simple JSON files or environment variables, making it suitable for both prototyping and production use. The design also encourages modularity: each capability can be swapped out or wrapped in a separate microservice without affecting the overall MCP contract.

Typical use cases include building knowledge‑base assistants that query internal databases, automating business workflows where an assistant can trigger external APIs (e.g., booking flights or updating CRM records), and creating educational bots that pull from curated datasets. In a real‑world scenario, a customer support assistant could call the “lookup‑ticket” tool to retrieve ticket status and then use a custom prompt to format a friendly reply. Because the server adheres strictly to MCP, it can be deployed behind existing authentication and rate‑limiting infrastructure, ensuring secure and scalable operations.

What sets BasicMCPServer apart is its focus on simplicity without sacrificing flexibility. It ships with a clear, human‑readable configuration schema that maps directly to MCP’s abstract concepts, enabling developers to iterate quickly. The server also includes built‑in telemetry hooks for monitoring tool usage and response times, giving teams insight into how their assistants interact with backend services. In short, BasicMCPServer provides a solid foundation for developers to expose internal systems as AI‑ready tools, streamline integration workflows, and deliver richer, contextually aware assistant experiences.