USGS Water Monitoring

Connects Claude to real-time hydrological data from USGS stream gauges across the United States. You get water levels, flow rates, and flood stage information for rivers, creeks, and streams nationwide. Useful when you're building flood monitoring tools, analyzing watershed conditions, tracking drought impacts on waterways, or just need current stream data for a specific location. Part of OlyPort's federal data server collection, so it follows the same streamable-http pattern as their other environmental feeds. Free tier gives you 100 calls per day, which covers most exploration and light production use.