// MCP TOOL REFERENCE

confirm_payment_intent

Confirm a previously-created payment intent with a payment method. For card intents this triggers authorization; for APM intents this returns a next_action (redirect, QR, etc).

ServerMcp Ap2
CategoryFinancial

How to control confirm_payment_intent ↓

WHAT IT DOES

What confirm_payment_intent does on Mcp Ap2

AI agents use confirm_payment_intent 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 confirm_payment_intent needs a policy

This tool directly triggers a financial authorization on a payment intent. Confirming a payment intent commits financial obligations and initiates a charge against a payment method, making it a Financial category tool with critical severity due to the potential for unauthorized or erroneous charges.

From the tool's definition Confirm a previously-created payment intent with a payment method... triggers authorization

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

POLICY

How to control confirm_payment_intent

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 confirm_payment_intent:

policy.json

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

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

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Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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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 →

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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 confirm_payment_intent

What does the confirm_payment_intent tool do? +

Confirm a previously-created payment intent with a payment method. For card intents this triggers authorization; for APM intents this returns a next_action (redirect, QR, etc). 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 confirm_payment_intent? +

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

confirm_payment_intent 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 confirm_payment_intent? +

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

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

confirm_payment_intent 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.

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