check_searxng

Check SearXNG meta-search engine availability via GET /healthz. Falls back to checking the homepage returns 200.

SERVERMcp Nettools SOURCEaaronckj/mcp-nettools

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aaronckj-mcp-nettools/check-searxng.md

WHAT IT DOES

What check_searxng does on Mcp Nettools

AI agents call check_searxng to retrieve information from Mcp Nettools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why check_searxng is rated Low

This tool retrieves status information from a remote service and returns the result. It is purely informational with no side effects, no data modification, and no command execution. The GET request to a health endpoint is a standard read-only diagnostic operation. Severity is low because availability checks pose minimal risk even if misused by an agent.

From the tool's definition Tool performs a GET request to a health check endpoint (/healthz) or homepage to verify availability. Described as 'Check SearXNG meta-search engine availability' with no modification, deletion, or execution of commands on the target system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_searxng safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Nettools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_searxng, this is the rule to start with:

check_searxng Allowed

check_searxng is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "check_searxng": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Nettools, apply this rule, and every check_searxng call is checked against it from then on.

FAQ

Questions about check_searxng

What does the check_searxng tool do? +

Check SearXNG meta-search engine availability via GET /healthz. Falls back to checking the homepage returns 200. It is categorised as a Read tool in the Mcp Nettools MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_searxng? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_searxng: 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 Nettools. Nothing to install.

What risk level is check_searxng? +

check_searxng is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit check_searxng? +

Yes. Add a rate_limit block to the check_searxng 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.

How do I block check_searxng completely? +

Set action: deny in the PolicyLayer policy for check_searxng. 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.

What MCP server provides check_searxng? +

check_searxng is provided by the Mcp Nettools MCP server (aaronckj/mcp-nettools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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