Get the registered office address of a company
AI agents call get_registered_office_address to retrieve information from Companies House 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 publicly available company registration data (office address) from the UK Companies House API. It is a query operation that reads existing data without side effects, making it a Read category tool. The severity is low because company registered office addresses are public information, and retrieval poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'get_registered_office_address' and description 'Get the registered office address of a company' indicate a retrieval operation with no modification, deletion, or execution of external actions.
Documented attack patterns abuse exactly the kind of access get_registered_office_address gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Companies House MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_registered_office_address:
{
"version": "1",
"default": "deny",
"tools": {
"get_registered_office_address": {}
}
}get_registered_office_address is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the registered office address of a company. It is categorised as a Read tool in the Companies House MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Companies House MCP Server MCP server in PolicyLayer and add a rule for get_registered_office_address: 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 Companies House MCP Server. Nothing to install.
get_registered_office_address 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 get_registered_office_address 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 get_registered_office_address. 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.
get_registered_office_address is provided by the Companies House MCP Server MCP server (stefanoamorelli/companies-house-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Companies House 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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37 Companies House MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.