# volcano.catalog.us

Get the full catalog of all 170 US volcanoes tracked by the USGS Volcano Hazards Program. Includes Alaska, Hawaii, Cascades (Washington/Oregon/California), and other regions. Each entry contains: Smithsonian volcano number (vnum), USGS volcano code, region, GPS coordinates, elevation, NVEWS threat rating (Very High / High / Moderate / Low / Very Low), observatory contact, official volcano page URL, and image URL. Optionally filter by region substring (e.g. "Alaska", "Hawaii", "Cascades"). Use to enumerate all US volcanoes, discover IDs, or build regional hazard maps. No auth — USGS public domain.

Agent View of the PolicyLayer registry record for `volcano.catalog.us`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/volcano.catalog.us

## Facts

- Tool: `volcano.catalog.us`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `region` | string | no | Filter by region name substring (e.g. "Alaska", "Hawaii", "Cascades", "California") |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "volcano.catalog.us",
    "arguments": {}
  }
}
```

## Why volcano.catalog.us is rated Low

Read-only public data retrieval with no side effects.

From the tool's own definition: "Get the full catalog of all 170 US volcanoes tracked"

## Use case

AI agents call volcano.catalog.us to retrieve information from Apibase 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 Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "volcano.catalog.us": {}
  }
}
```

## Other tools on Apibase (1383)

- `infra.cloudflare.dns_delete` — Destructive — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/infra.cloudflare.dns-delete.md
- `infra.cloudflare.purge_cache` — Destructive — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/infra.cloudflare.purge-cache.md
- `polymarket.trading.cancel_order` — Destructive — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/polymarket.trading.cancel-order.md
- `ai.image.generate` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/ai.image.generate.md
- `aipush.market.report` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/aipush.market.report.md
- `audio.transcribe.submit` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/audio.transcribe.submit.md
- `dev.code.execute` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/dev.code.execute.md
- `device.registry.command` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/device.registry.command.md
- `document.convert.from_pdf` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/document.convert.from-pdf.md
- `document.convert.to_pdf` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/document.convert.to-pdf.md
- `document.convert.web_to_pdf` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/document.convert.web-to-pdf.md
- `hf_inference.nlp.translate` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/hf-inference.nlp.translate.md
- `infra.browser.create_session` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/infra.browser.create-session.md
- `phone.telnyx.sms_world` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/phone.telnyx.sms-world.md
- `phone.twilio.sms` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/phone.twilio.sms.md
- `platform.batch.call` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/platform.batch.call.md
- `scb.tables.query` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/scb.tables.query.md
- `socrata.datasets.query` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/socrata.datasets.query.md
- `web.screenshot.capture` — Execute — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/web.screenshot.capture.md
- `domain.namesilo.register` — Financial — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/domain.namesilo.register.md
- `phone.telnyx.sms_premium` — Financial — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/phone.telnyx.sms-premium.md
- `polymarket.trading.place_order` — Financial — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/polymarket.trading.place-order.md
- `abr.business.abn_lookup` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abr.business.abn-lookup.md
- `abr.business.acn_lookup` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abr.business.acn-lookup.md
- `abr.business.name_search` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abr.business.name-search.md
- `abs.demographics.population` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abs.demographics.population.md
- `abs.economy.cpi` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abs.economy.cpi.md
- `abs.economy.gdp` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abs.economy.gdp.md
- `abs.economy.labour_force` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abs.economy.labour-force.md
- `abs.economy.trade` — Read — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/abs.economy.trade.md
- …and 1353 more: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md

## 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-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase