pay_request

Make an HTTP request to a URL. If it returns 402 (Payment Required),

SERVERPay Mcp SOURCE@pay-skill/mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-pay-skill-pay-mcp/pay-request.md

WHAT IT DOES

What pay_request does on Pay Mcp

AI agents use pay_request to commit financial operations through Pay Mcp, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why pay_request is rated Critical

This tool is Financial because it facilitates USDC cryptocurrency payments on the Base blockchain. Even though the description is incomplete, the context establishes this as a payment system. An AI agent misusing this could send unauthorized payments, drain wallets, or commit financial fraud. Severity is critical due to direct monetary loss potential and irreversibility of blockchain transactions.

From the tool's definition Server description explicitly states 'USDC payments for AI agents on Base' and tool name 'pay_request' is part of payment infrastructure. Sibling tools include 'pay_send', 'pay_fund', 'pay_tab_charge', 'pay_tab_topup' which all commit financial transactions.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pay_request safely

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

pay_request Approval-gated

Any call to pay_request is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

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

GATE THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about pay_request

What does the pay_request tool do? +

Make an HTTP request to a URL. If it returns 402 (Payment Required),. It is categorised as a Financial tool in the Pay Mcp MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on pay_request? +

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

What risk level is pay_request? +

pay_request 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_request? +

Yes. Add a rate_limit block to the pay_request 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_request completely? +

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

pay_request is provided by the Pay MCP server (@pay-skill/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Pay, and thousands of servers like it.

This server

All 15 Pay tools → Critical-risk tools on this server →

Across the catalogue

request_virtual_card on Pop Pay →uber_request_ride on MCP Uber Server →pay_invoice on Bitcoin MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →