// MCP TOOL REFERENCE

create_pix_cobv

ServerMcp Afip
CategoryFinancial

WHAT IT DOES

What create_pix_cobv does on Mcp Afip

AI agents use create_pix_cobv 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 create_pix_cobv needs a policy

This tool creates a financial payment charge (Pix cobv) that initiates a real monetary transaction request. It commits a financial obligation by generating a payable charge with optional fine/interest terms, placing it squarely in the Financial category. Misuse could result in fraudulent charges being issued to real payers.

From the tool's definition Create a Pix charge with due date (cobv) — used for boleto-like Pix where the payer can pay at or after a due date with optional fine/interest. Returns txid, copy-paste EMV payload, and location URL.

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

POLICY

How to control create_pix_cobv

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 create_pix_cobv:

policy.json

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

Any call to create_pix_cobv 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 create_pix_cobv

What does the create_pix_cobv tool do? +

Create a Pix charge with due date (cobv) — used for boleto-like Pix where the payer can pay at or after a due date with optional fine/interest. Returns txid, copy-paste EMV payload, and location URL. 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 create_pix_cobv? +

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

create_pix_cobv 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 create_pix_cobv? +

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

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

create_pix_cobv 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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