// SCAN REPORT

USGS Water MCP

20 tools. 0 can modify or destroy data without limits.

Read-only server. Low risk, but rate limits prevent runaway API costs.

Last updated: 29 Jun 2026

0 can modify or destroy data

20 read-only

20 tools total

Community server · catalogue entry verified 29/06/2026

How to control USGS Water MCP ↓

TOOL MAP

What USGS Water MCP exposes to your agents

Read (20) Write / Execute (0) Destructive / Financial (0)

Running more than one server? Check your whole stack →

THE RISK

What can go wrong

Even read-only tools carry cost. An agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up bills.

POLICY

How to control USGS Water MCP

PolicyLayer is an MCP gateway — it sits between your AI agents and USGS Water MCP, and nothing reaches the server without passing your rules. These are the rules we recommend:

Cap read operations

{
  "fetch_usgs_data": {
    "limits": [
      {
        "counter": "fetch_usgs_data_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register USGS Water MCP — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON USGS WATER →

Instant setup, no code required.

FULL CATALOGUE

All 20 USGS Water MCP tools

READ 20 tools

FAQ

Questions about USGS Water MCP

Is the USGS Water MCP server safe to use without restrictions? +

The USGS Water MCP server is primarily read-only with 20 read tools. While it cannot modify data, an agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up costs. Rate limiting is still recommended.

How many tools does the USGS Water MCP server expose? +

20 tools across 1 categories: Read. 20 are read-only. 0 can modify, create, or delete data.

How do I enforce a policy on USGS Water MCP? +

Register the USGS Water MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every USGS Water MCP tool call.

Deterministic rules across all 20 USGS Water MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON USGS WATER →

Instant setup, no code required.

20 USGS Water MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.