// SCAN REPORT

Ares

10 tools. 1 can modify or destroy data without limits.

1 write tool that can modify data. Rate limits recommended.

Last updated: 2 Aug 2026

1 can modify or destroy data

9 read-only

10 tools total

Community server · catalogue entry checked 02/08/2026 · full schemas captured for 10 of 10 tools

How to control Ares ↓

TOOL MAP

What Ares exposes to your agents

Read (9) Write / Execute (1) Destructive / Financial (0)

Running more than one server? Check your whole stack →

CONTEXT-WINDOW COST

What Ares costs in tokens

1,432 tokens of tool definitions, loaded on every request

0.7% of a 200k context window

290 heaviest tool: search_companies

Full per-tool breakdown → Model it in the token calculator →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Ares tools

Write · Medium watch_entity The tool is designed to initiate monitoring/onboarding (a Write-class action that would create a subscription record), but the description explicitly states it is a stub that persists nothing yet.

1 of Ares's 10 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Ares

PolicyLayer is an MCP gateway — it sits between your AI agents and Ares, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "watch_entity": {
    "limits": [
      {
        "counter": "watch_entity_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "check_vat_payer": {
    "limits": [
      {
        "counter": "check_vat_payer_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Ares — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON ARES →

Instant setup, no code required.

FULL CATALOGUE

All 10 Ares tools

WRITE 1 tools

Write watch_entity Start onboarding for free monitoring of one Czech company by IČO. Stub only — persists nothing yet. Returns st

READ 9 tools

Read check_vat_payer Check whether a Czech company is a registered VAT payer (plátce DPH). If yes, returns DIČ, financial office, a Read get_bank_accounts Get transparent bank accounts published for this company (only available for VAT-registered subjects). Useful Read get_history Get historical record of a company (previous names, registered address changes, trade license history). Useful Read get_statutaries Get current statutory body (jednatelé, představenstvo, etc.) of a Czech company — who can legally act on its b Read lookup_by_ico Get a single Czech company record by its IČO (8-digit Business ID). Returns official name, registered address, Read search_by_address Find all companies registered at a given Czech address. Useful for due diligence (virtual offices, shell compa Read search_by_nace Find Czech companies by CZ-NACE activity code (economic sector classification). Example: "62" = IT, "47" = ret Read search_companies Search ARES by company name, city, street, PSČ, or NACE code. Combines all filters with AND. Useful when user Read validate_dic Validate a Czech DIČ (VAT ID). Format check: "CZ" + 8-10 digits. For 8-digit tail (legal entities) also runs M

FAQ

Questions about Ares

How do I prevent bulk modifications through Ares? +

The Ares server has 1 write tools including watch_entity. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Ares.

How many tools does the Ares MCP server expose? +

10 tools across 1 categories: Read. 9 are read-only. 1 can modify, create, or delete data.

How do I enforce a policy on Ares? +

Register the Ares MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Ares tool call.

Deterministic rules across all 10 Ares tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON ARES →

Instant setup, no code required.

10 Ares tools catalogued and risk-classified — across an index of 46,500+ MCP servers.

// WHERE THIS COMES FROM

These policies come from Ares's registry record.

The record behind this page: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →