check_n8n

Check n8n workflow automation platform health via GET /healthz. Returns status 'ok'. Default port 5678.

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-n8n.md

WHAT IT DOES

What check_n8n does on Mcp Nettools

AI agents call check_n8n 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_n8n is rated Low

This is a simple read-only health check operation. It queries the health status of an n8n instance via a GET request to a standard health endpoint. It retrieves information without modifying any data or triggering any workflows/executions. The blast radius is minimal—at worst, an attacker gains visibility into whether an n8n service is running, which is low-risk reconnaissance information.

From the tool's definition Tool performs a GET request to /healthz endpoint to check health status. Returns status 'ok'. No side effects, no data modification, no external operations triggered.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_n8n 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_n8n, this is the rule to start with:

check_n8n Allowed

check_n8n 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_n8n": {}
  }
}

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_n8n call is checked against it from then on.

FAQ

Questions about check_n8n

What does the check_n8n tool do? +

Check n8n workflow automation platform health via GET /healthz. Returns status 'ok'. Default port 5678. 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_n8n? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_n8n: 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_n8n? +

check_n8n is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit check_n8n? +

Yes. Add a rate_limit block to the check_n8n 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_n8n completely? +

Set action: deny in the PolicyLayer policy for check_n8n. 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_n8n? +

check_n8n 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.

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