Critical Risk →

reactivate_recurrent

Reactivate a previously deactivated recurrent payment (PUT /recurrentPayments/{recurrentPaymentId}/Reactivate). Resumes future scheduled charges from the next configured date.

How to control reactivate_recurrent ↓

What reactivate_recurrent does on Mcp Ap2

AI agents use reactivate_recurrent to commit financial operations through Mcp Ap2 — usually the final step of a payment, billing, or trading workflow. A call moves real money.

Critical Risk

Why reactivate_recurrent needs a policy

This tool reactivates recurring payment schedules, directly committing future financial obligations/charges. It falls squarely in the Financial category as it triggers scheduled monetary transactions. Misuse by an AI agent could result in unauthorized recurring charges, making severity critical.

From the tool's definition Reactivate a previously deactivated recurrent payment... Resumes future scheduled charges from the next configured date

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

How to control reactivate_recurrent

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 reactivate_recurrent:

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

Any call to reactivate_recurrent is blocked until a human approves it. 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.
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Related tools and policies

Go deeper

Questions about reactivate_recurrent

What does the reactivate_recurrent tool do? +

Reactivate a previously deactivated recurrent payment (PUT /recurrentPayments/{recurrentPaymentId}/Reactivate). Resumes future scheduled charges from the next configured date. 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 reactivate_recurrent? +

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

reactivate_recurrent 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 reactivate_recurrent? +

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

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

reactivate_recurrent 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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