USGS Earthquakes

Connects Claude to the US Geological Survey's real-time earthquake feed. You get a single tool, get_recent_earthquakes, that lets you filter by magnitude, state, and time window. Returns magnitude, location, depth, felt reports, and alert level for each event. Useful when you need current seismic data in a conversation, whether you're checking recent activity in a specific region, analyzing patterns over the past few days, or building reports that reference ground truth earthquake data. The free tier gives you 100 calls per day, which covers most interactive use cases. Part of OlyPort's broader federal data collection, so the authentication and transport setup works the same way across their other USGS and NOAA servers.