Critical Risk →

delete_card_token

Delete a Cartão Protegido vault token (DELETE /card/{token}). After deletion the token can no longer be used to create sales. Use when the cardholder requests removal or the card has been reported stolen.

How to control delete_card_token ↓

What delete_card_token does on Mcp Ap2

AI agents call delete_card_token to permanently remove resources in Mcp Ap2 — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

Why delete_card_token needs a policy

This tool permanently deletes a stored payment card token, which cannot be undone. While the deletion itself may be necessary for legitimate security reasons (stolen card, cardholder request), an AI agent misusing this tool could maliciously revoke valid payment methods, disrupting legitimate transactions and user access.

From the tool's definition Tool name is 'delete_card_token' and description states 'Delete a Cartão Protegido vault token' and 'After deletion the token can no longer be used to create sales.' This is irreversible deletion of payment infrastructure data.

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

How to control delete_card_token

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 delete_card_token:

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_card_token"
  ]
}

delete_card_token disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

  1. Create a free account and register Mcp Ap2 — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RESTRICT THIS TOOL →

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Related tools and policies

Go deeper

Questions about delete_card_token

What does the delete_card_token tool do? +

Delete a Cartão Protegido vault token (DELETE /card/{token}). After deletion the token can no longer be used to create sales. Use when the cardholder requests removal or the card has been reported stolen. It is categorised as a Destructive tool in the Mcp Ap2 MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_card_token? +

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

delete_card_token is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_card_token? +

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

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

delete_card_token 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.

Free to start. No card required.

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

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