# Mcp MCP server

Agent View of the PolicyLayer registry record for Mcp: identity, probed posture, risk grade, and all 7 tools classified. HTML page: https://policylayer.com/tools/com-getappniche-mcp

## Facts

- Server id: `@getappniche/mcp`
- Install: `npx -y @getappniche/mcp`
- Homepage: https://github.com/getappniche/mcp
- Registry record: grade C, identity unverified
- Lifecycle: active
- Auth posture: open
- Rate-limited: no
- Tools: 7 (6 with introspected schema)
- Tool categories present: Read
- Tags: com getappniche mcp
- Record last modified: 2026-08-12T11:05:04.090Z

## Tools (7)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `batch_keyword_difficulty` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/batch-keyword-difficulty.md |
| `get_app_detail` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/get-app-detail.md |
| `get_app_historicals` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/get-app-historicals.md |
| `get_app_reviews` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/get-app-reviews.md |
| `get_keyword_difficulty` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/get-keyword-difficulty.md |
| `get_supported_countries` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/get-supported-countries.md |
| `search_apps` | Read | Low | https://policylayer.com/tools/com-getappniche-mcp/search-apps.md |

## Tool descriptions

- `batch_keyword_difficulty` — Score up to 10 keywords in one call. Cost: 10 credits per keyword.
- `get_app_detail` — Return one app's full record. Accepts the canonical id ("apple:284882215", "google:com.spotify.music"), a bare Apple track id, an Android package name, or a pasted App Store / Google Play URL. Cost: 1 credit.
- `get_app_historicals` — Return historical metric points for one app (daily up to 90 days, weekly beyond). Cost: 1 credit.
- `get_app_reviews` — Read app reviews two ways: pass app_id for live store reviews of ANY app — App Store or Google Play — (no tracking needed, storefront selectable), or omit it to read the workspace's tracked apps with sentiment, topics and improvement are…
- `get_keyword_difficulty` — Score one keyword for difficulty and opportunity, on the App Store or Google Play. Cost: 10 credits.
- `get_supported_countries` — Return supported country codes. Cost: free.
- `search_apps` — Search App Store and Google Play apps across 25+ filters — store, category, language, price model, rating, review count, download and revenue estimates (min and max), release and update recency, and review-growth direction — sorted by an…

## 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`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-getappniche-mcp · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/com-getappniche-mcp