Search FOFA cyberspace mapping platform. Requires FOFA_KEY environment variable (FOFA_EMAIL is optional). Query syntax: field=\
AI agents call fofa_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.
This tool queries an external cyberspace mapping service and returns asset discovery information. While the data retrieved could potentially be sensitive (IPs, ports, domains), the tool itself only performs read-only queries with no side effects on systems or data. The blast radius of misuse is limited to information disclosure about network infrastructure, making it a Read category tool with low severity.
From the tool's definition Tool performs a 'Search' operation on FOFA cyberspace mapping platform to 'retrieve IP, port, and domain data' with no mention of modification, deletion, or execution capabilities. Query syntax indicates data retrieval only.
Documented attack patterns abuse exactly the kind of access fofa_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 fofa_search:
{
"version": "1",
"default": "deny",
"tools": {
"fofa_search": {}
}
}fofa_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 FOFA cyberspace mapping platform. Requires FOFA_KEY environment variable (FOFA_EMAIL is optional). 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 fofa_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.
fofa_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 fofa_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 fofa_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.
fofa_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.