Generate a scannable QR code from text or URLs. Returns an image URL ready to embed or download. Use when you need to encode information into a QR code.
Part of the Qrcode server.
Free to start. No card required.
AI agents use create_qr to create or modify resources in Qrcode. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call create_qr repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Qrcode.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"create_qr": {
"limits": [
{
"counter": "create_qr_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Qrcode policy for all 22 tools.
These attack patterns abuse exactly the kind of access create_qr gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Generate a scannable QR code from text or URLs. Returns an image URL ready to embed or download. Use when you need to encode information into a QR code.. It is categorised as a Write tool in the Qrcode MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Qrcode MCP server in PolicyLayer and add a rule for create_qr: 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 Qrcode. Nothing to install.
create_qr is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_qr 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 create_qr. 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.
create_qr is provided by the Qrcode MCP server (https://gateway.pipeworx.io/qrcode/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 22 Qrcode tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.