"Free things, offers, and resources" matching MCP servers:

An MCP server that provides real-time weather data, hourly forecasts, and daily summaries using the free Open-Meteo API with no API key required. It enables users to search for weather conditions by specific coordinates or city names across multiple measurement units.

Enables keyless, read-only access to a wide range of public APIs (including weather, elevation, Japanese addresses, environment, science, and civic data) through MCP clients, with usage limits and abuse protection built in.

A local MCP server that integrates FastMCP with OpenAI to enable natural language queries for current weather, forecasts, and currency conversion using ExchangeRate-API and Open-Meteo.

Enables AI to read live weather data and manage a persistent to-do list through MCP tools, demonstrating both read and write capabilities without API keys.

Provides access to Hong Kong climate and weather data from the Hong Kong Observatory, including current conditions, forecasts, warnings, tides, and more.

An MCP server that provides real-time weather alerts, forecasts, stock market data, and news information through various API integrations.

Enables real-time weather lookup for any location via MCP, returning concise summaries from wttr.in.

Demonstrates OAuth2/OIDC authentication for MCP servers using Asgardeo, with JWT validation and a sample weather tool to showcase secured API access.

Provides real-time air quality data (US AQI, PM2.5, PM10, ozone, NO2, SO2, CO) for any city via natural language, using free Open-Meteo data and a single tool.

An MCP server for US electricity demand and weather data that provides tools, resources, and prompts to query hourly demand, daily demand, peak demand, and demand vs temperature across regions, all running locally with a bundled SQLite database.

An MCP server that provides weather forecasts and current conditions for any city via the free Open-Meteo API, with no API key or account required.

MCP server providing Polymarket weather-market bucket-transition signals for AI agents, with free city/signal inspection tools and paid signal bundles via USDC on Base using x402.

Radar-verified storm intelligence for the continental US — NOAA MRMS hail and wind swaths, per-address storm history, affected-property reports, area monitors with webhook + email alerts, and swath map images. Boots keyless; free API key (100 credits) at swathapi.com.

A free, MIT-licensed MCP server that provides AI agents with analyst-grade US severe-weather tools, including live warning polygons, SPC outlooks, radar-derived hail and rotation products, and a composite threat brief.

Per-species pollen forecasts at any point on Earth, seven days ahead. Free tier covers casual use.

Enables AI agents to access live aviation data including METAR weather, airport information, aircraft specs, an aviation glossary, and FAA-style practice questions via the free Rotate Pilot API.

Free travel utilities plus live x402 travel itelligence: $0.01 Travel Pulse disruption and emergency-awareness checks, day trips, weekend getaways, creator experiences, weather-aware planning, mobility options, currency conversion, airport checks, and timing guidance.

A production-grade MCP server that provides real-time weather data and demonstrates the complete MCP protocol surface including tools, resources, prompts, and structured output.

A simple MCP server demonstrating tools, resources, and prompts for weather data, built during an Agentic AI Internship.

This MCP server enables AI assistants to perform calculations, fetch live weather, manage in-memory notes, access system info and note resources, and use reusable code review and summarization prompts.