get_icnpo_categories | PolicyLayer

WHAT IT DOES

What get_icnpo_categories does on Norwegian Business Registry MCP Server

AI agents call get_icnpo_categories to retrieve information from Norwegian Business Registry MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why get_icnpo_categories needs a policy

This tool queries and returns classification categories for non-profit organizations. It is a straightforward read operation that retrieves reference data from the registry without creating, modifying, executing code, deleting, or committing financial transactions. The low severity reflects minimal risk even in misuse scenarios, as it only exposes standard categorical information.

From the tool's definition Tool name 'get_icnpo_categories' and description 'Get ICNPO (International Classification of Non-Profit Organisation) categories' indicate a retrieval operation with no parameters that modify or delete data.

Documented attack patterns abuse exactly the kind of access get_icnpo_categories gives an agent:

POLICY

How to control get_icnpo_categories

PolicyLayer is an MCP gateway — it sits between your AI agents and Norwegian Business Registry MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_icnpo_categories:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_icnpo_categories": {}
  }
}

get_icnpo_categories is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Norwegian Business Registry MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Norwegian Business Registry MCP Server tools

Read get_entity Get detailed information about a specific Norwegian business entity Read get_entity_roles Get all roles for a specific entity Read get_entity_updates Get updates on entities for maintaining a local copy of the registry Read get_municipalities Get all Norwegian municipalities Read get_municipality Get information about a specific Norwegian municipality Read get_organizational_form Get information about a specific organizational form Read get_organizational_forms Get all organizational forms used in the Norwegian business registry Read get_role_updates Get role updates for entities

All 15 Norwegian Business Registry MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_icnpo_categories

What does the get_icnpo_categories tool do? +

Get ICNPO (International Classification of Non-Profit Organisation) categories. It is categorised as a Read tool in the Norwegian Business Registry MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_icnpo_categories? +

Register the Norwegian Business Registry MCP Server MCP server in PolicyLayer and add a rule for get_icnpo_categories: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Norwegian Business Registry MCP Server. Nothing to install.

What risk level is get_icnpo_categories? +

get_icnpo_categories is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_icnpo_categories? +

Yes. Add a rate_limit block to the get_icnpo_categories rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block get_icnpo_categories completely? +

Set action: deny in the PolicyLayer policy for get_icnpo_categories. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides get_icnpo_categories? +

get_icnpo_categories is provided by the Norwegian Business Registry MCP Server MCP server (reidar80/brreg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Norwegian Business Registry MCP Server tool call.

Start from Norwegian Business Registry MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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15 Norwegian Business Registry MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.