export-chart

THE RISK

Low Risk

Why export-chart needs a policy

Exporting a chart reads/retrieves existing chart data and converts it to a different format (e.g., PNG, PDF, CSV). This is fundamentally a read operation with no side effects on the server data. Severity is low as it only exposes existing chart data.

From the tool's definition Export a chart in various formats

Documented attack patterns abuse exactly the kind of access export-chart gives an agent:

POLICY

How to control export-chart

PolicyLayer is an MCP gateway — it sits between your AI agents and PI API MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for export-chart:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "export-chart": {}
  }
}

export-chart is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register PI API MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More PI API MCP Server tools

Destructive delete-category Delete a category Destructive delete-chart Delete a chart Write create-category Create a new category Write set-api-url Set the API base URL for all requests Write set-organization Set the organization ID for subsequent requests Write update-category Update an existing category Other authenticate Guide for authenticating with the PI API Other authenticate-with-credentials Authenticate with the PI API using username and password (last resort option)

All 18 PI API MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about export-chart

What does the export-chart tool do? +

Export a chart in various formats. It is categorised as a Read tool in the PI API MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on export-chart? +

Register the PI API MCP Server MCP server in PolicyLayer and add a rule for export-chart: 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 PI API MCP Server. Nothing to install.

What risk level is export-chart? +

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

Can I rate-limit export-chart? +

Yes. Add a rate_limit block to the export-chart 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 export-chart completely? +

Set action: deny in the PolicyLayer policy for export-chart. 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 export-chart? +

export-chart is provided by the PI API MCP Server MCP server (mingzilla/pi-api-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every PI API MCP Server tool call.

Start from PI API MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →