Search Finnish company registry (PRH/YTJ) by name, location, business ID, or company form. Free government API.
AI agents call search_companies to retrieve information from Mcp Finnish Companies 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 from an official Finnish government registry without any capability to modify, delete, or execute operations. The blast radius of misuse is minimal: an agent could retrieve excess company information or enumerate the registry, but no irreversible changes or external side effects are possible. This is a standard read-only data lookup tool.
From the tool's definition Tool description states 'Search Finnish company registry' and 'Free government API' with no mention of modifications, deletions, or external operations.
Attacks that exploit this kind of access
Search Finnish company registry (PRH/YTJ) by name, location, business ID, or company form. Free government API. It is categorised as a Read tool in the Mcp Finnish Companies MCP Server, which means it retrieves data without modifying state.
Register the Mcp Finnish Companies MCP server in PolicyLayer and add a rule for search_companies: 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 Mcp Finnish Companies. Nothing to install.
search_companies 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_companies 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_companies. 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_companies is provided by the Mcp Finnish Companies MCP server (robobobby/mcp-finnish-companies). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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