# ClimateAPIs.com

> Discover APIs for weather, forecasts, historical climate, environmental observations, air quality and risk-relevant data.

## Machine-readable resources
- ARD manifest: https://climateapis.com/.well-known/ard.json
- Structured catalog: https://climateapis.com/api/catalog.json
- MCP discovery metadata: https://climateapis.com/mcp.json
- Live RealWorldAPIs MCP: https://mcp.realworldapis.com/mcp

## Representative tasks
- Find APIs for climate and weather data
- Find APIs for environmental forecasts, historical climate or risk data
- Find an API for air quality and environmental observations
- Find agent-ready weather and climate APIs

## Audited API snapshot
- OpenWeather — OpenWeather: Current, forecast, historical and environmental weather data through developer APIs.
- Tomorrow.io Weather API — Tomorrow.io: Real-time, forecast, historical and event-based weather intelligence for applications and agents.
- Visual Crossing Weather API — Visual Crossing: Historical weather, forecasts, timelines and climate data by location.
- WeatherAPI.com — WeatherAPI.com: Current, forecast, historical, marine, astronomy and geolocation weather data.
- Ambee APIs — Ambee: Environmental intelligence APIs covering air quality, pollen, weather, wildfire, disasters and geospatial context.
- Meteomatics Weather API — Meteomatics: Global weather, climate, ocean and environmental data through a unified API.
- NOAA / National Weather Service API — NOAA / NWS: Official US forecasts, alerts, observations and weather-office data.
- OpenAQ API — OpenAQ: Global open air-quality measurements and monitoring-station metadata.
- AirNow API — AirNow: US air-quality observations, forecasts and reporting-area data.
- Google Air Quality API — Google: Current and historical air-quality data, pollutants and health recommendations by location.
- Google Pollen API — Google: Pollen forecasts and heatmaps with pollen types, plant information and health-oriented indices.
- Open-Meteo — Open-Meteo: Open weather forecasts, historical weather, climate, marine and air-quality data.

Source: RealWorldAPIs audited catalog, snapshot 2026-09-16.
Semantic domain: climateapis.com