Get domains hosted on an IP address.
AI agents call get_hosted_domains to retrieve information from IPInfo MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only lookup operation to retrieve domain information associated with an IP address. It queries existing data from the IPInfo API without creating, modifying, deleting, or executing any operations. The blast radius of misuse is minimal—at worst, an agent could enumerate domains for reconnaissance purposes, but no system state would be altered and no irreversible actions would occur.
From the tool's definition Tool name 'get_hosted_domains' and description 'Get domains hosted on an IP address' indicate a query/lookup operation that retrieves information without modifying or executing anything.
Attacks that exploit this kind of access
Get domains hosted on an IP address. It is categorised as a Read tool in the IPInfo MCP Server MCP Server, which means it retrieves data without modifying state.
Register the IPInfo MCP Server MCP server in PolicyLayer and add a rule for get_hosted_domains: 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 IPInfo MCP Server. Nothing to install.
get_hosted_domains 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_hosted_domains 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_hosted_domains. 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_hosted_domains is provided by the IPInfo MCP Server MCP server (nimblebraininc/mcp-ipinfo). 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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