canvas_info

Dimensions, palette, price per tile and your remaining spend budget. Free.

SERVER21millionpixels SOURCE21millionpixels-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/21millionpixels-mcp/canvas-info.md

WHAT IT DOES

What canvas_info does on 21millionpixels

AI agents call canvas_info to retrieve information from 21millionpixels without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why canvas_info is rated Low

Even though canvas_info only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs canvas_info safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 21millionpixels, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For canvas_info, this is the rule to start with:

canvas_info Allowed

canvas_info is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "canvas_info": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 21millionpixels, apply this rule, and every canvas_info call is checked against it from then on.

FAQ

Questions about canvas_info

What does the canvas_info tool do? +

Dimensions, palette, price per tile and your remaining spend budget. Free. It is categorised as a Read tool in the 21millionpixels MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on canvas_info? +

Register the 21millionpixels MCP server in PolicyLayer and add a rule for canvas_info: 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 21millionpixels. Nothing to install.

What risk level is canvas_info? +

canvas_info is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit canvas_info? +

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

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

canvas_info is provided by the 21millionpixels MCP server (21millionpixels-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on 21millionpixels, and thousands of servers like it.

This server

All 6 21millionpixels tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →