flight-price-and-schedule

Forward geocoding: street address or place name to latitude/longitude, worldwide, via OpenStreetMap Nominatim. Returns best {lat, lon, displayName, type, importance}, count and attribution. Requires ?q=<address or place name>, max 300 chars. Errors: 400 missing_query|query_too_long, 404 no_match - a coordinate is never guessed, 502 geocoder_unavailable|geocoder_failed. The OPPOSITE direction (coordinates to an address) is /reverse-geocode. /weather needs lat+lon, so call this first.

Straight-line geometry, not road routing: a walking-radius circle (speed x time) around a point or geocoded place and, with a destination, the straight-line distance, estimated minutes and whether it is within reach. POST /v1/routing with {from or place, minutes, to}. Places are geocoded with OpenStreetMap Nominatim. Pay per request in USDC; no account, no API key.

Tide predictions and sea-level forecast for any coastal location: hourly sea-level height (meters) plus derived high and low tide times, next 24 hours by default. From Open-Meteo Marine. For shipping, fishing, surfing, and coastal or port operations that need tide tables.

Complete weather bundle in one call: current conditions (temperature, feels-like, humidity, wind speed/direction/gusts, pressure, cloud cover, precipitation, UV, day/night) plus 24-hour hourly and 7-day daily forecast, air quality (AQI, PM2.5, PM10, ozone), solar radiation, and severe-weather alerts. Query by city name or lat/lon. Times in the location local timezone. Most complete weather data per call.

Marine weather and sea-state forecast for any coastal coordinate. Returns significant wave height, wave direction and period, wind waves, swell (height, direction, period) and ocean current velocity and direction. Oceanographic conditions for shipping, offshore, maritime safety, fishing, surfing and coastal operations.

Air quality, pollution and environmental data for any city or lat/lon. Returns European and US AQI (air quality index), particulate matter PM2.5 and PM10, ozone (O3), nitrogen dioxide (NO2), sulphur dioxide (SO2), and carbon monoxide (CO). Real-time index for health, allergy, pollution-monitoring and environmental agents.

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full author lists use POST. Every answer signed. Free sample, no payment required: GET /play/cite

Deterministic ephemeris snapshot (one location/time). Free sample, no payment required: GET /play/sky

Resolve a location or address query to current place candidates and coordinates through Open-Meteo.

Searches for travel locations and returns matching results.

Point-location weather forecast/reanalysis lookup from Google DeepMind's WeatherNext model via Earth Engine. Every request is bounded to data at least 1 hour old -- the exact license boundary at which WeatherNext data becomes CC BY 4.0 and commercially reusable. This listing never serves data still under the real-time Terms of Use, which explicitly prohibits commercial resale.

Space weather events API: recent solar flares with class, peak time, and source region — the events that disrupt GPS accuracy, satellite links, and HF radio. Normalized JSON for infrastructure-risk and comms agents.

Asteroid close-approach API: every known near-earth object passing Earth this week — size estimates, closest-approach date and miss distance, velocity, and the potentially-hazardous classification, as structured JSON. Use for space-risk dashboards, science content, education agents, and novelty feeds. Cached 6 hours.

Track near-earth asteroids passing by this week, including size estimate, miss distance, approach velocity, and a potentially-hazardous flag for each object. Built for science content generation, novelty feeds, and monitoring agents that want a plain JSON view of current asteroid activity without parsing raw orbital data.

Every near-earth object making a close approach to Earth this week — estimated size, closest approach date, miss distance, velocity, and whether it's classified as potentially hazardous — as structured JSON. For space-risk dashboards, science newsletters, and education agents covering near-earth asteroid activity. Refreshed every 6 hours.

Current weather + multi-day forecast for any city or lat/lon via Open-Meteo. Temperature, humidity, wind, precipitation, WMO condition codes.

Search live macroeconomic indicators from the World Bank's World Development Indicators (WDI) database by country and indicator (e.g. GDP, population, inflation, unemployment). Restricted exclusively to WDI, source ID 2 -- the World Bank's own flagship, wholly-owned compiled dataset -- never any of the ~90 other databases the same World Bank API also serves, some of which carry third-party reuse terms. Country and indicator can be given as free text (resolved against the World Bank's own referen

Live multi-day forecast and currently active weather alerts (severe thunderstorm, flood, winter storm, etc.) for a single latitude/longitude point, from the U.S. National Weather Service's own public API (api.weather.gov). Coverage is limited to the United States, its territories, and adjacent coastal/marine zones -- api.weather.gov has no data for points outside that area.

Search a bounded, normalized snapshot of significant recent earthquake events with magnitude, time, depth, location, stable USGS links and provenance. Event-level reuse rights remain unknown because ComCat includes contributing seismic networks.

Get current weather conditions and a one-to-seven-day forecast for a geocoded location from Open-Meteo.

Hour-by-hour weather forecast API by coordinates: temperature, precipitation probability and amount, wind speed, and weather code for every hour over the next 48 hours, worldwide. Structured JSON for scheduling, logistics, and planning agents that need finer resolution than a daily outlook.

Archived daily weather (max temperature, min temperature, total precipitation) for any point on Earth over a specified past date range, as structured JSON. Built for agents doing historical analysis, insurance claim verification, or trend backtesting that need actual recorded conditions rather than a forecast.

MPG lookup for any US-market car since 1984: official test-cycle city, highway, and combined miles per gallon plus fuel type and CO2 per mile, by year/make/model or VIN. Multiple engine/transmission variants are returned with ids so you can query the exact one. Clean structured JSON.

Global natural-event tracker: every currently open natural event worldwide — wildfires, severe storms, volcanic activity, sea/lake ice, earthquakes, floods, drought, landslides, and more — with title, category, location, and magnitude data, as normalized JSON. Complements US-only hazard feeds with worldwide coverage. Optional category filter.