access_create_visitor

A write tool on the UniFi Access MCP server.

SERVERUniFi Access MCP SOURCEpypi:unifi-protect-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/io-github-sirkirby-unifi-access-mcp/access-create-visitor.md

WHAT IT DOES

What access_create_visitor does on UniFi Access MCP

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

RISK

Why access_create_visitor is rated Medium

Creating visitor records is a reversible write operation that modifies access control data. This is severe because visitor creation can grant physical access to facilities and potentially create security audit issues, but it is not destructive (can be undone via delete_visitor), not financial, and not execute-level code running.

From the tool's definition Tool name is 'access_create_visitor' which indicates creation of visitor records in a UniFi Access control system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs access_create_visitor safely

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

access_create_visitor Rate-limited

access_create_visitor 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": {
    "access_create_visitor": {
      "limits": [
        {
          "counter": "access_create_visitor_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 UniFi Access MCP, apply this rule, and every access_create_visitor call is checked against it from then on.

FAQ

Questions about access_create_visitor

What does the access_create_visitor tool do? +

access_create_visitor is a write tool on the UniFi Access MCP server. It is categorised as a Write tool in the UniFi Access MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on access_create_visitor? +

Register the UniFi Access MCP server in PolicyLayer and add a rule for access_create_visitor: 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 UniFi Access MCP. Nothing to install.

What risk level is access_create_visitor? +

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

Can I rate-limit access_create_visitor? +

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

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

access_create_visitor is provided by the UniFi Access MCP server (pypi:unifi-protect-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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