Build an alerting tool

Official feeds that can power a focused monitor for hazards, health, or security without scraping or paid data.

Curated by Trilemma Data · Reviewed 2026-08-19

Browse matching catalog filters

National Weather Service API
beginnerSmall
Current U.S. forecasts, observations, and official weather alerts for building local planning tools and operational warning products.

First project: Flag risky hours for an outdoor plan

EnvironmentGeoJSON +2No key
GDACS Disaster Alerts
beginnerTiny
Global multi-hazard disaster alerts for building international emergency monitors that stay linked to official national sources.

First project: List recent orange and red earthquake alerts

EnvironmentJSON +1No key
USGS Earthquake Catalog
beginnerMedium
Continuously updated earthquake locations, magnitudes, depths, timestamps, and review status for monitoring seismic activity and spatial patterns.

First project: Profile the past week's earthquakes

EnvironmentGeoJSON +3No key
NASA FIRMS Active Fire Data
intermediateSmall
Near-real-time satellite detections of active fires and thermal anomalies for monitoring hotspots, mapping risk, and supporting emergency analysis.

First project: Locate today's strongest thermal anomalies

EnvironmentCSV +3Key
CISA Known Exploited Vulnerabilities Catalog
beginnerTiny
Confirmed in-the-wild software vulnerabilities for building patch-priority alerts, exposure monitors, and remediation queues.

First project: Monitor newly exploited vulnerabilities

TechnologyJSON +1No key
Federal Register Documents API
beginnerSmall
Daily rules, proposed rules, notices, and presidential documents for building focused regulatory-change and agency-publication monitors.

First project: Monitor one agency's new publications

GovernmentJSONNo key
CDC FluView ILINet
beginnerTiny
Weekly U.S. outpatient influenza-like illness activity for building seasonal respiratory-illness monitoring tools.

First project: Compare recent state ILI activity levels

HealthJSON +1No key
NOAA SWPC Space Weather
beginnerTiny
Operational geomagnetic and space-weather indices for building grid, radio, and satellite-environment monitors.

First project: Flag elevated planetary K-index periods

EnvironmentJSONNo key