// MCP TOOL REFERENCE

refund_capture

Refund a captured payment via POST /v2/payments/captures/{id}/refund. Pass an amount object for partial refunds, or omit for a full refund. Idempotent via PayPal-Request-Id.

ServerMcp Afip
CategoryFinancial

How to control refund_capture ↓

WHAT IT DOES

What refund_capture does on Mcp Afip

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

THE RISK

Critical Risk

Why refund_capture needs a policy

This tool directly moves money by refunding captured payments. Refunds are financial transactions that reverse charges and return funds to customers, creating financial obligations and affecting account balances.

From the tool's definition Refund a captured payment via POST /v2/payments/captures/{id}/refund. Pass an amount object for partial refunds, or omit for a full refund.

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

POLICY

How to control refund_capture

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Afip, and nothing reaches the server without passing your rules. This is the rule we recommend for refund_capture:

policy.json

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

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

Create a free account and register Mcp Afip — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Mcp Afip tools

Financial authorize_transaction Authorize a transaction (reserve funds without capturing) via Braintree GraphQL authorizeP Financial cancel_collection Cancel a scheduled collection request Financial cancel_credit Cancel an authorized-but-uncaptured credit payment. Financial cancel_payment Attempt to cancel a payment that has not yet settled. Iniciador endpoint: POST /payments/{ Financial cancel_payment_intent Cancel a payment intent that has not yet been captured. Fails on already-captured intents; Financial cancel_recurrence Cancel an active recurrence. Future charges will stop; already-charged cycles are untouche Financial cancel_subscription Cancel a subscription by ID Financial revoke_token Revoke an issued access_token or refresh_token at POST /v1/token/revoke. Use to terminate

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Go deeper

Critical-risk tools in Mcp Afip → 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 refund_capture

What does the refund_capture tool do? +

Refund a captured payment via POST /v2/payments/captures/{id}/refund. Pass an amount object for partial refunds, or omit for a full refund. Idempotent via PayPal-Request-Id. It is categorised as a Financial tool in the Mcp Afip MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on refund_capture? +

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

What risk level is refund_capture? +

refund_capture 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 refund_capture? +

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

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

refund_capture is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Afip tool call.

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