{"slug":"2s-io-api-gov-usgs-water-395df1","title":"Real-time water data from USGS NWIS stream / river / groundwater gauges within a","host":"2s.io","method":"GET","resource":"https://2s.io/api/gov/usgs-water","category":"code","description":"Real-time water data from USGS NWIS stream / river / groundwater gauges within a bounding box around lat/lon. Returns each site's latest reading per requested variable: streamflow (00060, ft³/s), gage height (00065, ft), water temperature (00010, °C), precipitation (00045, in), and others. Each read","price_listed":0.006,"price_asked":0.006,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":248,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"lat":-90,"limit":25,"lon":-180,"radius":0.5,"variables":"example"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"method":{"const":"GET"},"queryParams":{"additionalProperties":false,"properties":{"lat":{"description":"Center latitude (decimal degrees).","maximum":90,"minimum":-90,"type":"number"},"limit":{"default":25,"description":"Max readings to return (1-100). Default 25.","maximum":100,"minimum":1,"type":"integer"},"lon":{"description":"Center longitude (decimal degrees).","maximum":180,"minimum":-180,"type":"number"},"radius":{"default":0.5,"description":"Half-side of bounding box, in decimal degrees. Default 0.5 (~35 mi).","maximum":2,"minimum":0.05,"type":"number"},"variables":{"description":"Comma-separated USGS parameter codes (5-digit). Default \"00060,00065,00010\" (streamflow, gage height, water temp).","type":"string"}},"required":["lat","lon"],"type":"object"},"type":{"const":"http"}},"required":["type","method","queryParams"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.006,"price_match":true,"latency_ms":248,"error":null}],"description_full":"Real-time water data from USGS NWIS stream / river / groundwater gauges within a bounding box around lat/lon. Returns each site's latest reading per requested variable: streamflow (00060, ft³/s), gage height (00065, ft), water temperature (00010, °C), precipitation (00045, in), and others. Each reading: site code + name, lat/lon, variable name + description + unit, value (or null if no data / sentinel), qualifier codes (e.g., 'P' = provisional, 'A' = approved), observed timestamp. Free public-domain data from waterservices.usgs.gov.","last_updated":"2026-09-09T21:16:57.421Z","schemes":["exact"]}