agent_subscribe_mail_plan

Start a mail-plan subscription using a Stripe PaymentMethod (NOT a shared payment token —

SERVERTrekMail MCP Server SOURCEtrekmail/mcp-server

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/trekmail-mcp-server/agent-subscribe-mail-plan.md

WHAT IT DOES

What agent_subscribe_mail_plan does on TrekMail MCP Server

AI agents use agent_subscribe_mail_plan to commit financial operations through TrekMail MCP Server, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why agent_subscribe_mail_plan is rated Critical

Initiates a paid subscription using a payment method, committing financial obligations.

From the tool's definition subscribe mail-plan, Stripe PaymentMethod, financial obligation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs agent_subscribe_mail_plan safely

PolicyLayer is an MCP gateway: it sits between your AI agents and TrekMail MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For agent_subscribe_mail_plan, this is the rule to start with:

agent_subscribe_mail_plan Approval-gated

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

View as policy code

policy.json

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

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TrekMail MCP Server, apply this rule, and every agent_subscribe_mail_plan call is checked against it from then on.

FAQ

Questions about agent_subscribe_mail_plan

What does the agent_subscribe_mail_plan tool do? +

Start a mail-plan subscription using a Stripe PaymentMethod (NOT a shared payment token —. It is categorised as a Financial tool in the TrekMail MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on agent_subscribe_mail_plan? +

Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for agent_subscribe_mail_plan: 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 TrekMail MCP Server. Nothing to install.

What risk level is agent_subscribe_mail_plan? +

agent_subscribe_mail_plan 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 agent_subscribe_mail_plan? +

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

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

agent_subscribe_mail_plan is provided by the TrekMail MCP Server MCP server (trekmail/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on TrekMail MCP Server, and thousands of servers like it.

This server

All 248 TrekMail MCP Server tools → Critical-risk tools on this server →

Across the catalogue

web3_subscribe on 0xarchive →create_agent on Conviction →subscribe_ltp on Groww MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →