# usgs-eq-query

Query the USGS FDSN earthquake catalog (GeoJSON). Supports time, magnitude, and bounding-box filters.

Agent View of the PolicyLayer registry record for `usgs-eq-query`. HTML page: https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/usgs-eq-query

## Facts

- Tool: `usgs-eq-query`
- Server: Meta Data Mcp (`pypi:meta-data-mcp`) — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp.md
- Install: `npx -y pypi:meta-data-mcp`
- Homepage: https://github.com/derekslinz/meta-data-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "usgs-eq-query",
    "arguments": {}
  }
}
```

## Why usgs-eq-query is rated Low

This tool retrieves and filters publicly available earthquake data from the USGS catalog. It has no capability to modify, delete, or execute operations. It returns structured data (GeoJSON) based on query parameters. Even if misused by an AI agent, it only exposes read access to public scientific data with no destructive or financial consequences.

From the tool's own definition: "Tool performs querying of the USGS earthquake catalog with filtering options (time, magnitude, bounding-box). Returns GeoJSON data. The word 'query' combined with the description indicates read-only retrieval of existing data with no side effects."

## Use case

AI agents call usgs-eq-query to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Meta Data Mcp:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "usgs-eq-query": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-derekslinz-meta-data-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-derekslinz-meta-data-mcp