Critical Risk →

pay_for_service

Pay for an x402 service or transfer SOL to a destination

Part of the Cloaked Agent server.

pay_for_service can move real money through Cloaked Agent, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents use pay_for_service to initiate financial transactions through Cloaked Agent. Financial operations involve real money and are irreversible once processed. PolicyLayer blocks financial tools by default, requiring explicit human approval with transaction-level limits to prevent unauthorised spending.

pay_for_service moves real money. Without a policy, an autonomous agent could initiate transactions that drain accounts or exceed budgets. PolicyLayer blocks financial tools by default, requiring human-in-the-loop approval with configurable spending limits per transaction and per time window.

Financial tools involve real money. Block by default and require explicit human approval before enabling.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "pay_for_service": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

See the full Cloaked Agent policy for all 14 tools.

Get this rule live on your own Cloaked Agent server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access pay_for_service gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so pay_for_service only ever does what you allow.

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Other financial tools across the catalogue. The same approach applies to each: deny by default, or require human approval.

What does the pay_for_service tool do? +

Pay for an x402 service or transfer SOL to a destination. It is categorised as a Financial tool in the Cloaked Agent MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on pay_for_service? +

Register the Cloaked Agent MCP server in PolicyLayer and add a rule for pay_for_service: 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 Cloaked Agent. Nothing to install.

What risk level is pay_for_service? +

pay_for_service is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit pay_for_service? +

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

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

pay_for_service is provided by the Cloaked Agent MCP server (@cloakedagent/sdk). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Cloaked Agent tool call.

Deterministic rules across all 14 Cloaked Agent tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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