Country metadata via REST Countries. Lookup by alpha2 (ISO 3166-1), alpha3, or name (with optional fullText exact match). Returns names, ISO codes, region/subregion, capital, population, area, languages, currencies, calling code, flag, coordinates, driving side, TLDs.
AI agents call country.lookup to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward read operation that queries and returns country metadata. It retrieves information by alpha2/alpha3 codes or country name without any side effects. There is no data mutation, code execution, or financial transaction involved. The low severity reflects minimal blast radius even if misused by an agent.
From the tool's definition Tool performs data lookup and retrieval ('Lookup', 'Returns') of country metadata from a reference API (REST Countries). No modification, deletion, execution, or financial action is performed.
Attacks that exploit this kind of access
Country metadata via REST Countries. Lookup by alpha2 (ISO 3166-1), alpha3, or name (with optional fullText exact match). Returns names, ISO codes, region/subregion, capital, population, area, languages, currencies, calling code, flag, coordinates, driving side, TLDs. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for country.lookup: 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. Nothing to install.
country.lookup 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 country.lookup 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 country.lookup. 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.
country.lookup is provided by the MCP server (@2sio/mcp). 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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