Search for Norwegian business entities (hovedenheter) with various filters
AI agents call search_entities 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.
This tool retrieves and filters publicly available business registry information. It performs a search query with no side effects, data modification, code execution, or financial operations. Searching a public registry of company information is a standard Read operation with minimal risk—the data appears to be intended for public disclosure.
From the tool's definition Tool name 'search_entities' and description 'Search for Norwegian business entities (hovedenheter) with various filters' indicate a query/search operation over public registry data. No description of write, delete, execute, or financial capabilities.
Documented attack patterns abuse exactly the kind of access search_entities gives an agent:
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 search_entities:
{
"version": "1",
"default": "deny",
"tools": {
"search_entities": {}
}
}search_entities is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Search for Norwegian business entities (hovedenheter) with various filters. It is categorised as a Read tool in the Norwegian Business Registry MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Norwegian Business Registry MCP Server MCP server in PolicyLayer and add a rule for search_entities: 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.
search_entities is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search_entities 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.
Set action: deny in the PolicyLayer policy for search_entities. 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.
search_entities 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.
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.
Free to start. No card required.
15 Norwegian Business Registry MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.