Get a free API token — no account or email required. The token gives you up to 5 QR codes that can be updated at any time. IMPORTANT LIFETIME WARNING: the token expires after 90 days, and QR codes are permanently deleted ~90 days after that (~180 days total). To keep codes alive permanently, clai...
Part of the QrVerloz server.
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AI agents may call request_api_key to permanently remove or destroy resources in QrVerloz. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call request_api_key in a loop, permanently destroying resources in QrVerloz. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"request_api_key"
]
}See the full QrVerloz policy for all 8 tools.
These attack patterns abuse exactly the kind of access request_api_key gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Get a free API token — no account or email required. The token gives you up to 5 QR codes that can be updated at any time. IMPORTANT LIFETIME WARNING: the token expires after 90 days, and QR codes are permanently deleted ~90 days after that (~180 days total). To keep codes alive permanently, claim a free account at https://qrverloz.com/claim — this must be done before the token expires. Save the returned token: it is shown only once. Add it to your MCP client config under Authorization: Bearer, then call create_qr_code.. It is categorised as a Destructive tool in the QrVerloz MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the QrVerloz MCP server in PolicyLayer and add a rule for request_api_key: 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 QrVerloz. Nothing to install.
request_api_key is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the request_api_key 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.
Set action: deny in the PolicyLayer policy for request_api_key. 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.
request_api_key is provided by the QrVerloz MCP server (https://qrverloz.com/api/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 QrVerloz tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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