proxmox_secret_store

Secure secret storage for VM credentials and API keys

SERVERMCP Proxmox Server SOURCEbsahane/mcp-proxmox

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/bsahane-mcp-proxmox/proxmox-secret-store.md

WHAT IT DOES

What proxmox_secret_store does on MCP Proxmox Server

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

RISK

Why proxmox_secret_store is rated Medium

This tool writes sensitive secrets (credentials and API keys) to persistent storage. While not immediately destructive or financial, misuse by an AI agent could compromise infrastructure security by storing malicious credentials or overwriting legitimate ones.

From the tool's definition Tool explicitly performs credential and API key storage operations. 'Secure secret storage for VM credentials and API keys' indicates the tool creates and modifies sensitive authentication data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs proxmox_secret_store safely

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

proxmox_secret_store Rate-limited

proxmox_secret_store 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": {
    "proxmox_secret_store": {
      "limits": [
        {
          "counter": "proxmox_secret_store_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 MCP Proxmox Server, apply this rule, and every proxmox_secret_store call is checked against it from then on.

FAQ

Questions about proxmox_secret_store

What does the proxmox_secret_store tool do? +

Secure secret storage for VM credentials and API keys. It is categorised as a Write tool in the MCP Proxmox Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on proxmox_secret_store? +

Register the MCP Proxmox Server MCP server in PolicyLayer and add a rule for proxmox_secret_store: 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 Proxmox Server. Nothing to install.

What risk level is proxmox_secret_store? +

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

Can I rate-limit proxmox_secret_store? +

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

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

proxmox_secret_store is provided by the MCP Proxmox Server MCP server (bsahane/mcp-proxmox). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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