vps_keys_attach

Attach an SSH public key to a virtual machine.

SERVERHostinger SOURCEidugeni/hostinger-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hostinger-mcp/vps-keys-attach.md

WHAT IT DOES

What vps_keys_attach does on Hostinger

AI agents use vps_keys_attach to create or update resources in Hostinger, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hostinger environment.

RISK

Why vps_keys_attach is rated Medium

This tool creates a new SSH key association on a VPS, which is a reversible write operation. While not destructive (the key can be removed), it is high severity because unauthorized SSH key attachment grants persistent remote access to a virtual machine, potentially compromising the entire system. An AI agent misusing this could lock an owner out or grant attackers access.

From the tool's definition Tool name 'vps_keys_attach' and description 'Attach an SSH public key to a virtual machine' indicate modification of VPS security configuration. The word 'Attach' confirms a create/add operation that modifies the VM's authorized keys.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs vps_keys_attach safely

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

vps_keys_attach Rate-limited

vps_keys_attach stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vps_keys_attach": {
      "limits": [
        {
          "counter": "vps_keys_attach_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about vps_keys_attach

What does the vps_keys_attach tool do? +

Attach an SSH public key to a virtual machine. It is categorised as a Write tool in the Hostinger MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vps_keys_attach? +

Register the Hostinger MCP server in PolicyLayer and add a rule for vps_keys_attach: 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 Hostinger. Nothing to install.

What risk level is vps_keys_attach? +

vps_keys_attach is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit vps_keys_attach? +

Yes. Add a rate_limit block to the vps_keys_attach 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 vps_keys_attach completely? +

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

vps_keys_attach is provided by the Hostinger MCP server (idugeni/hostinger-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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