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mcp/harbor
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usgs water mcp server MCP

v0.6.0 changelog · 9

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

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

transport:streamable-http runtime:npm tools:8
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Target client

run in your project directory 

claude mcp add --transport http usgs-water-mcp-server https://usgs-water.caseyjhand.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

water_list_parameters

water list parameters

water_find_sites

water find sites

water_get_readings

water get readings

water_get_series

water get series

water_get_site_data_catalog

water get site data catalog

water_get_conditions

water get conditions

water_dataframe_query

water dataframe query

water_dataframe_describe

water dataframe describe

All 8 tools, one page each

5 resources you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.