pay_fund

Generate a funding link to deposit USDC into your wallet.\n\n

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-fund.md

WHAT IT DOES

What pay_fund does on Pay Mcp

AI agents use pay_fund 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_fund is rated Critical

This tool facilitates depositing USDC cryptocurrency into a wallet, which constitutes a financial operation involving money movement. While the deposit itself is initiated by the user (not the tool moving funds directly), generating a funding link is a critical step in financial transactions. Misuse by an AI agent could lead to unauthorized wallet funding or financial commitment.

From the tool's definition Tool name 'pay_fund' combined with description 'Generate a funding link to deposit USDC into your wallet' indicates direct financial operations. Server context shows this is part of a USDC payments system for AI agents on Base blockchain.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pay_fund 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_fund, this is the rule to start with:

pay_fund Approval-gated

Any call to pay_fund 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_fund": {
      "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_fund call is checked against it from then on.

FAQ

Questions about pay_fund

What does the pay_fund tool do? +

Generate a funding link to deposit USDC into your wallet.\n\n. 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_fund? +

Register the Pay MCP server in PolicyLayer and add a rule for pay_fund: 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_fund? +

pay_fund 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_fund? +

Yes. Add a rate_limit block to the pay_fund 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_fund completely? +

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

pay_fund 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

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 →