Back to search
100
MCP live MCP 2026-07-28 streamable-http

io.github.cyanheads/usgs-water-mcp-server

io.github.cyanheads/usgs-water-mcp-server

Query real-time and historical USGS water data from ~8,000 stream gages and groundwater wells.

Uptime
100.0%
1 direct probes · 30d
Response
835ms
last probe
Tools
7
callable
Resources
4
readable
Prompts
0
available
Primary URL
https://usgs-water.caseyjhand.com/mcp

Tools · 7

water_list_parameters

List well-known USGS parameter codes with human-readable names, units, and thematic domain — a static, built-in catalog. Use this first to discover that 00060 = "Discharge" (ft³/s), 00065 = "Gage heig…

water_find_sites

Find USGS water monitoring sites by bounding box, state, county, or HUC watershed code, filtered by site type and parameter availability. Returns site numbers, names, coordinates, types, altitude, and…

water_get_readings

Get the latest instantaneous (~15-min, real-time) values for up to 100 USGS sites in one call — per-site, per-parameter records with timestamp, value, unit, and provisional/approved qualifiers. Each s…

water_get_series

Get a daily or instantaneous time series for one USGS site and parameter over a date range, as time-ordered value records. Large sets (>500 records) return the most recent 500 with truncated=true; wit…

water_get_conditions

Get a USGS site's current reading ranked against its full period-of-record daily-mean percentiles for the same calendar day — a "how unusual is this" percentileClass (record-high to record-low), not a…

water_dataframe_query

Run a read-only SQL SELECT against water data tables staged on a DataCanvas by water_get_series or water_find_sites. Workflow: run water_get_series or water_find_sites (get canvas_id + table_name) → w…

water_dataframe_describe

List tables and columns staged on a DataCanvas by water_get_series or water_find_sites. Call this after water_get_series or water_find_sites returns a canvas_id to discover the exact table name and co…

Resources · 4

usgs-water-parameters

Full USGS parameter code catalog — injectable context for clients that support resources. Lists well-known parameter codes with human-readable names, units, and thematic domain. The same data is also …

usgs-water://parameters
Potomac River at Little Falls, MD

Site metadata for a USGS monitoring site: name, coordinates, type, HUC watershed code, state, county, drainage area, and altitude. Use water_find_sites to discover site numbers.

usgs-water://site/01646500
Willamette River at Portland, OR

Site metadata for a USGS monitoring site: name, coordinates, type, HUC watershed code, state, county, drainage area, and altitude. Use water_find_sites to discover site numbers.

usgs-water://site/14211720
Colorado River at Lees Ferry, AZ

Site metadata for a USGS monitoring site: name, coordinates, type, HUC watershed code, state, county, drainage area, and altitude. Use water_find_sites to discover site numbers.

usgs-water://site/09380000

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "io.github.cyanheads/usgs-water-mcp-server": {
      "url": "https://usgs-water.caseyjhand.com/mcp",
      "transport": "streamable-http"
    }
  }
}