// MCP TOOL REFERENCE

pay_plin

Initiate a Plin direct payment. Plin is the inter-bank wallet (Interbank, BBVA, Scotiabank, BanBif). The payer authorizes in-app; this call sends the payment request to their phone.

ServerMcp Ap2
CategoryFinancial

How to control pay_plin ↓

WHAT IT DOES

What pay_plin does on Mcp Ap2

AI agents use pay_plin to commit financial operations through Mcp Ap2 — usually the final step of a payment, billing, or trading workflow. A call moves real money.

THE RISK

Critical Risk

Why pay_plin needs a policy

This tool directly initiates financial transactions using a real payment service. An AI agent misusing this tool could authorize unauthorized payments, drain accounts, or commit fraud. The blast radius is maximal: irreversible fund transfers. Financial category is the most severe applicable classification per the priority hierarchy.

From the tool's definition 'Initiate a Plin direct payment' and 'sends the payment request to their phone' — this tool initiates actual bank transfers via an inter-bank wallet system (Interbank, BBVA, Scotiabank, BanBif). The tool moves money between accounts.

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

POLICY

How to control pay_plin

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 pay_plin:

policy.json

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

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

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.

GATE THIS TOOL →

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EXPLORE

Related tools and policies

More Mcp Ap2 tools

Financial authorize_transaction Authorize a transaction (reserve funds without capturing) via Braintree GraphQL authorizeP Financial block_card Block a card temporarily (reversible). Use for lost-card or fraud-suspected flows. Card st Financial cancel_bill Cancel a pending bill Financial cancel_collection Cancel a scheduled collection request Financial cancel_credit Cancel an authorized-but-uncaptured credit payment. Financial cancel_debit Cancel a debit-card payment by Getnet payment_id. Financial cancel_invoice Cancel/void an authorized invoice (FECancel — limited to certain types/conditions) Financial cancel_order Cancel an order, optionally restocking and refunding

All 1300 Mcp Ap2 tools →

Financial tools on other servers

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Go deeper

Critical-risk tools in Mcp Ap2 → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about pay_plin

What does the pay_plin tool do? +

Initiate a Plin direct payment. Plin is the inter-bank wallet (Interbank, BBVA, Scotiabank, BanBif). The payer authorizes in-app; this call sends the payment request to their phone. It is categorised as a Financial tool in the Mcp Ap2 MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on pay_plin? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for pay_plin: 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 pay_plin? +

pay_plin 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_plin? +

Yes. Add a rate_limit block to the pay_plin 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_plin completely? +

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

pay_plin 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.

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1300 Mcp Ap2 tools catalogued and risk-classified — across an index of 43,000+ MCP servers.