The request "weatherdemo" names no specific product, so these are general weather data APIs that offer current, forecast and historical data 169. Open-Meteo is free for non-commercial use with no API key 6, while Weatherbit and Meteosource expose current and forecast endpoints for any location 15.
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Weather API by Weatherbitweatherbit.ioverified and signed
Returns current conditions, daily and hourly forecasts for a latitude/longitude pair through an API key 111.
official:API · Weatherbit - Interactive Swagger UI Documentation
for agents: GET /forecast/hourly?lat={lat}&lon={lon} · GET /current?stations={stations} · GET /current?lat={lat}&lon={lon}
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Visual Crossing Weather APIvisualcrossing.comverified and signed
Provides forecast and historical plus forecast timeline weather for a location through REST endpoints 919.
official:API · Visual Crossing Weather API+1 community tools built for it
for agents: GET /VisualCrossingWebServices/rest/services/weatherdata/forecast · GET /VisualCrossingWebServices/rest/services/timeline/{location} · GET /VisualCrossingWebServices/rest/services/timeline/{location}/{startdate}
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Storm Glass Weather APIstormglass.ioverified and signed
Returns hourly high-resolution forecasts by coordinates from a free tier with paid plans 1020.
official:API · Storm Glass Marine Weather
for agents: getForecast
Sources
- 1Weather API | Weatherbitweatherbit.io · read 2026-10-29
- 5Meteosource - The Global Weather API & Mapping Platform - current weather and forecast datameteosource.com · read 2026-10-29
- 6🌤️ Free Open-Source Weather API | Open-Meteo.comopen-meteo.com · read 2026-10-29
- 9Visual Crossing | Global Weather Data & Developer APIsvisualcrossing.com · read 2026-10-29
- 10Weather API - stormglass.iostormglass.io · read 2026-10-29
- 11Weatherbit - Interactive Swagger UI Documentation: declares "GET /forecast/hourly?lat={lat}&lon={lon}" (the record we read and signed)unfragile.ai · read 2026-10-24
- 15Interactive documentation for your Premium plan: declares "point_point_get" (the record we read and signed)unfragile.ai · read 2026-10-24
- 16Open-Meteo APIs: declares "GET /v1/forecast" (the record we read and signed)unfragile.ai · read 2026-10-24
- 19Visual Crossing Weather API: declares "GET /VisualCrossingWebServices/rest/services/weatherdata/forecast" (the record we read and signed)unfragile.ai · read 2026-10-24
- 20Storm Glass Marine Weather: declares "getForecast" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
GET /forecast/hourly?lat={lat}&lon={lon} · Weatherbit - Interactive Swagger UI Documentation verified and signed
Returns an hourly forecast - Given a lat/lon.
CurrentWeatherData · OpenWeatherMap API verified and signed
Call current weather data for one location.
· WorldWeatherOnline.com website read, tools not yet checked
Discover WorldWeatherOnline's weather API capabilities: real-time data, 14-day forecasts, historical records, marine, ski and astronomy — built for travel, agriculture, energy, insurance and more.
gribstream_query_timeseries · GribStream.com Historical Weather Forecast API verified and signed
AUTH REQUIRED / DATA QUERY. Executes an authenticated /api/v2/{dataset}/timeseries request and returns actual weather/forecast data values. Use this tool, not the NO AUTH request-building or metadata tools, when the user asks to fetch, retrieve, download, return, or analyze weather values, CSV/JSON/
point_point_get · Interactive documentation for your Premium plan verified and signed
Returns weather data for a single point (geographic name or GPS)
GET /v1/forecast · Open-Meteo APIs verified and signed
7 day weather forecast for coordinates
· Xweather website read, tools not yet checked
Weather API, lightning data, forecasts, and climate intelligence for developers and enterprises. Weather intelligence for energy, finance, insurance, and operations.
get_weather_for_locations · Meteomatics verified and signed
Get weather time series for multiple lat/lon points or weather stations in a single request. Use this when the user asks about weather at several locations or wants to compare them. Each location uses either lat+lon or station_id — not both. The API returns coordinates in exactly the same order as t
GET /VisualCrossingWebServices/rest/services/weatherdata/forecast · Visual Crossing Weather API verified and signed
Weather Forecast API
getForecast · Storm Glass Marine Weather verified and signed
Get hourly forecasts by coordinates
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.