check_netbird

Check NetBird VPN management server health via GET /api/v1/self-hosted/setup-keys (returns 200 or 401 when service is up). Default port 8080.

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-netbird.md

WHAT IT DOES

What check_netbird does on Mcp Nettools

AI agents call check_netbird 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_netbird is rated Low

This tool retrieves the status of a NetBird VPN management server through a simple HTTP GET request. It performs no data modification, deletion, code execution, or financial operations. The worst-case misuse scenario is network reconnaissance on internal infrastructure, which has limited blast radius without further exploitation.

From the tool's definition Tool performs a GET request to a health-check endpoint that returns status codes (200 or 401). The description explicitly states it 'Check[s]' health status via GET /api/v1/self-hosted/setup-keys, which is a read-only query operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_netbird 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_netbird, this is the rule to start with:

check_netbird Allowed

check_netbird 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_netbird": {}
  }
}

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_netbird call is checked against it from then on.

FAQ

Questions about check_netbird

What does the check_netbird tool do? +

Check NetBird VPN management server health via GET /api/v1/self-hosted/setup-keys (returns 200 or 401 when service is up). Default port 8080. 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_netbird? +

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

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

Can I rate-limit check_netbird? +

Yes. Add a rate_limit block to the check_netbird 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_netbird completely? +

Set action: deny in the PolicyLayer policy for check_netbird. 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_netbird? +

check_netbird 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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