# market_rank

Returns all US states ranked by per-capita business density for any industry (NAICS) — least-to-most saturated. Territor Cost: $0.005–$0.05 USDC on Base per call.

Agent View of the PolicyLayer registry record for `market_rank`. HTML page: https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/market-rank

## Facts

- Tool: `market_rank`
- Server: Omnicall — Agent Tools Gateway (`https://omnicall.gocreativeai.com/mcp`) — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools.md
- Homepage: https://github.com/https://omnicall.gocreativeai.com/mcp
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `arg` | string | yes |  |

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": "market_rank",
    "arguments": {
      "arg": "<arg>"
    }
  }
}
```

## Why market_rank is rated Low

This tool queries and retrieves market ranking data (business density by industry and state). It performs no side effects, creates no data, modifies nothing, and executes no code. The per-call USDC cost is a billing mechanism, not a financial operation that moves funds on behalf of the user.

From the tool's own definition: "Tool description states it 'Returns all US states ranked by per-capita business density' — a retrieval operation with no modification, deletion, or execution. The word 'Returns' indicates a query that reads and aggregates existing data."

## Use case

AI agents call market_rank to retrieve information from Omnicall — Agent Tools Gateway 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 Omnicall — Agent Tools Gateway:

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

## Other tools on Omnicall — Agent Tools Gateway (78)

- `ai_ask` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-ask.md
- `ai_eco` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-eco.md
- `ai_extract` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-extract.md
- `ai_image` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-image.md
- `ai_music` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-music.md
- `ai_pro` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-pro.md
- `ai_research` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-research.md
- `ai_sandbox` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-sandbox.md
- `ai_speech` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-speech.md
- `ai_summarize` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-summarize.md
- `ai_transcribe` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-transcribe.md
- `ai_ultra` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-ultra.md
- `ai_video` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-video.md
- `crypto_chains` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-chains.md
- `crypto_defi_tvl` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-defi-tvl.md
- `crypto_dex` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-dex.md
- `crypto_exchanges` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-exchanges.md
- `crypto_fear_greed` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-fear-greed.md
- `crypto_gas` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-gas.md
- `crypto_global` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-global.md
- `crypto_history` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-history.md
- `crypto_market` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-market.md
- `crypto_price` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-price.md
- `crypto_protocols` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-protocols.md
- `crypto_stablecoins` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-stablecoins.md
- `crypto_treasury` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-treasury.md
- `crypto_trending` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-trending.md
- `crypto_yields` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-yields.md
- `defi` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/defi.md
- `dex` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/dex.md
- …and 48 more: https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools.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-gocreativeai-omnicall-agent-tools · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-gocreativeai-omnicall-agent-tools