get_paywall

THE RISK

Low Risk

Why get_paywall needs a policy

This tool retrieves paywall configuration information, which is a read-only operation that queries existing data. It has no side effects, does not create, modify, or delete data, and does not execute code or process financial transactions. The low severity reflects that configuration retrieval poses minimal risk even if misused by an agent.

From the tool's definition Tool name 'get_paywall' and description 'Get paywall configuration for a specific URL' indicates retrieval of configuration data without modification or execution of transactions.

Documented attack patterns abuse exactly the kind of access get_paywall gives an agent:

POLICY

How to control get_paywall

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for get_paywall:

policy.json

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

get_paywall 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 Mcp Ap2 — 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

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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 get_paywall

What does the get_paywall tool do? +

Get paywall configuration for a specific URL. It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_paywall? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for get_paywall: 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 Mcp Ap2. Nothing to install.

What risk level is get_paywall? +

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

Can I rate-limit get_paywall? +

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

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

get_paywall is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →