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Usgs Water MCP server

by mrfentmen·io.github.mrfentmen/usgs-water-mcp·v1.0.5

MCP server for USGS streamflow, gauge status, and water observations.

A85/100grade A
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Safety scan
A85/100

full report

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If you have run it, two minutes of your experience saves the next person an afternoon.

Usgs Water tools (5)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • daily_values

    Daily values for a USGS gauge over a date range.

  • find_gauges

    Find active USGS stream gauges in a longitude,latitude bounding box.

  • get_streamflow

    Get USGS instantaneous water observations for one gauge.

  • parameter_codes

    Common USGS parameter codes with names and units.

  • site_info

    Site metadata for a USGS gauge: name, county, drainage area and coordinates.

Public scan report

scanner v0.1.10 · 2026-11-01 · same rubric, same numbers if you re-run it

no findings
  • Code scan8 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 85 days ago12/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 85/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Usgs Water compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
85/100
higher than 70% of 48,255 servers
Tools
5
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break

What its tools let an agent do: 5 read

Release history: 2 versions in the registry since 2026-09-21, latest 2026-10-28, typically one every 36 days.

Install Usgs Water in Claude Code, Cursor or VS Code

Runs npx -y usgs-water-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add usgs-water-mcp -- npx -y usgs-water-mcp
Add to Cursor

What the publisher says

From the Usgs Water repository's README, as published. We do not edit it. Read it on GitHub

usgs-water-mcp

Query public USGS water observations for stream gauges and watershed research. This is separate from earthquake data and focuses on streamflow and gauge discovery.

Tools

  • get_streamflow: instantaneous observations for a gauge and USGS parameter code. 00060 is the common discharge parameter.
  • find_gauges: find active stream gauges in a min longitude,min latitude,max longitude,max latitude bounding box, with a bounded result count.

The server uses USGS Water Services without an API key. Data can be provisional and may be revised by USGS. Requests time out after 20 seconds.

Run

npm install
npm run build
node dist/index.js

Read-only stdio MCP server. No credentials or local source data are required.

Nothing above is checked by us. What we check is on the safety report.

Usgs Water: common questions

Is Usgs Water MCP server safe?
Yes, by our scan: it is graded A (85/100). Read the Usgs Water safety report
How do I install Usgs Water?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Usgs Water need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Usgs Water maintained?
The last commit was 87 days ago (2026-08-08). The latest release is v1.0.5.
How does Usgs Water compare with other MCP servers?
safety score 85/100 (higher than 70% of 48,255 servers); tools 5 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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