// MCP TOOL REFERENCE

verify_payment_method

ServerMcp Afip
CategoryExecute

WHAT IT DOES

What verify_payment_method does on Mcp Afip

AI agents invoke verify_payment_method to trigger actions in Mcp Afip. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

THE RISK

High Risk

Why verify_payment_method needs a policy

This tool triggers an external operation against a payment processor (zero-auth or $1 authorization). While it doesn't move money in a meaningful way, it executes a live transaction request against a payment network, which can have side effects (temporary holds, velocity checks, card flags).

From the tool's definition Run a credit-card verification (zero-auth or $1 auth) on a tokenized payment method via verifyPaymentMethod

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

POLICY

How to control verify_payment_method

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 verify_payment_method:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "verify_payment_method": {
      "limits": [
        {
          "counter": "verify_payment_method_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

verify_payment_method stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

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.

RATE-LIMIT THIS TOOL →

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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

High-risk tools in Mcp Afip → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-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.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about verify_payment_method

What does the verify_payment_method tool do? +

Run a credit-card verification (zero-auth or $1 auth) on a tokenized payment method via verifyPaymentMethod. Returns a CreditCardVerification with status and processor response. Useful before vaulting or charging. It is categorised as a Execute tool in the Mcp Afip MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on verify_payment_method? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for verify_payment_method: 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 verify_payment_method? +

verify_payment_method is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit verify_payment_method? +

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

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

verify_payment_method 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.

Start from Mcp Afip, 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 Afip tools catalogued and risk-classified — across an index of 43,000+ MCP servers.