Search Hunter (奇安信鹰图) cyberspace mapping platform. Requires HUNTER_KEY environment variable. Query syntax: field=\
AI agents call hunter_search to retrieve information from FOFA Quake Hunter MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The hunter_search tool queries a cyberspace mapping platform to retrieve information about IP, port, and domain data. This is a read-only operation that retrieves existing data without creating, modifying, deleting, or executing external operations. While the underlying data could theoretically be sensitive (asset discovery results), the tool itself performs no write, destructive, or execution operations.
From the tool's definition Tool description states 'Search Hunter... cyberspace mapping platform' with query syntax for field-based searching. The verb 'Search' and context of 'asset discovery' indicate data retrieval with no modification capabilities.
Documented attack patterns abuse exactly the kind of access hunter_search gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and FOFA Quake Hunter MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for hunter_search:
{
"version": "1",
"default": "deny",
"tools": {
"hunter_search": {}
}
}hunter_search is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search Hunter (奇安信鹰图) cyberspace mapping platform. Requires HUNTER_KEY environment variable. Query syntax: field=\. It is categorised as a Read tool in the FOFA Quake Hunter MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FOFA Quake Hunter MCP Server MCP server in PolicyLayer and add a rule for hunter_search: 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 FOFA Quake Hunter MCP Server. Nothing to install.
hunter_search 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 hunter_search 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 hunter_search. 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.
hunter_search is provided by the FOFA Quake Hunter MCP Server MCP server (ruoji6/fofa_quake_hunter_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from FOFA Quake Hunter 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.
3 FOFA Quake Hunter MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.