generateQRCode

Generates a QR Code image for the specified data.

SERVERAPI Ninjas SOURCEhttps://mcp.api-ninjas.com/mcp

Medium RISK CLASS

Category Write

Parameters 52 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/com-api-ninjas-mcp/generateqrcode.md

WHAT IT DOES

What generateQRCode does on API Ninjas

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

Parameter	Type	Required	Description
`data`	string	Yes	Data to encode in the QR code.
`size`	integer	—	Size of the QR code image to generate. The output will be a square image with (size x size) dimensions. The default size is 250.
`format`	string	Yes	Image format to return. Must be one of the following: png, jpg, jpeg, eps, svg.
`bg_color`	string	—	Background color of the QR code. Must be a 6-digit hex color (e.g. 00ff00 for green). Default is ffffff (white).
`fg_color`	string	—	Foreground color of the QR code. Must be a 6-digit hex color (e.g. 00ff00 for green). Default is 000000 (black).

Parameters from the server's own tool schema.

RISK

Why generateQRCode is rated Medium

An AI agent can call generateQRCode faster than any human can review: one bad instruction and it creates or modifies resources in API Ninjas by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs generateQRCode safely

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

generateQRCode Rate-limited

generateQRCode 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": {
    "generateQRCode": {
      "limits": [
        {
          "counter": "generateqrcode_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 API Ninjas, apply this rule, and every generateQRCode call is checked against it from then on.

FAQ

Questions about generateQRCode

What does the generateQRCode tool do? +

Generates a QR Code image for the specified data. It is categorised as a Write tool in the API Ninjas MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does generateQRCode accept? +

generateQRCode accepts 5 parameters: data, size, format, bg_color, fg_color. Required: data, format. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on generateQRCode? +

Register the API Ninjas MCP server in PolicyLayer and add a rule for generateQRCode: 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 API Ninjas. Nothing to install.

What risk level is generateQRCode? +

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

Can I rate-limit generateQRCode? +

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

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

generateQRCode is provided by the API Ninjas MCP server (https://mcp.api-ninjas.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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