# batch_keyword_difficulty

Score up to 10 keywords in one call. Cost: 10 credits per keyword.

Agent View of the PolicyLayer registry record for `batch_keyword_difficulty`. HTML page: https://policylayer.com/tools/com-getappniche-mcp/batch-keyword-difficulty

## Facts

- Tool: `batch_keyword_difficulty`
- Server: Mcp (`@getappniche/mcp`) — https://policylayer.com/tools/com-getappniche-mcp.md
- Install: `npx -y @getappniche/mcp`
- Homepage: https://github.com/getappniche/mcp
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 4 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `store` | string | no | Store to score against: 'apple' or 'google'. |
| `country` | string | no | Two-letter ISO country code of the storefront, e.g. 'US', 'DE' (default 'US'). |
| `keywords` | array | yes | Up to 10 search terms to score in one call, e.g. ['habit tracker', 'daily planner']. |
| `language` | string | no | Language code the keywords are written in, e.g. 'en', 'de' (default 'en'). |

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": "batch_keyword_difficulty",
    "arguments": {
      "keywords": []
    }
  }
}
```

## Why batch_keyword_difficulty is rated Low

This is a read-only query tool that retrieves keyword difficulty scores from the App Store & Google Play data. It neither creates, modifies, deletes data, nor executes arbitrary code or financial transactions. The cost in credits is a tracking mechanism, not a financial operation. Classification as Read is appropriate.

From the tool's own definition: "Tool 'batch_keyword_difficulty' scores keywords (ASO keyword analysis) and returns difficulty metrics. The description indicates it 'Score[s] up to 10 keywords' with a credit cost, which is a lookup/analysis operation with no side effects on app data, user…"

Risk signals: Bulk/mass operation — affects multiple targets

## Use case

AI agents call batch_keyword_difficulty to retrieve information from 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 Mcp:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "batch_keyword_difficulty": {}
  }
}
```

## Other tools on Mcp (6)

- `get_app_detail` — Read — https://policylayer.com/tools/com-getappniche-mcp/get-app-detail.md
- `get_app_historicals` — Read — https://policylayer.com/tools/com-getappniche-mcp/get-app-historicals.md
- `get_app_reviews` — Read — https://policylayer.com/tools/com-getappniche-mcp/get-app-reviews.md
- `get_keyword_difficulty` — Read — https://policylayer.com/tools/com-getappniche-mcp/get-keyword-difficulty.md
- `get_supported_countries` — Read — https://policylayer.com/tools/com-getappniche-mcp/get-supported-countries.md
- `search_apps` — Read — https://policylayer.com/tools/com-getappniche-mcp/search-apps.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=com-getappniche-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-getappniche-mcp