// MCP TOOL REFERENCE

telegram-change-stars-subscription

ServerMCP-Telegram
CategoryFinancial

How to control telegram-change-stars-subscription ↓

WHAT IT DOES

What telegram-change-stars-subscription does on MCP-Telegram

AI agents use telegram-change-stars-subscription to commit financial operations through MCP-Telegram — usually the final step of a payment, billing, or trading workflow. A call moves real money.

THE RISK

Critical Risk

Why telegram-change-stars-subscription needs a policy

This tool directly manages financial subscriptions — canceling or restoring recurring Telegram Stars payments. It commits or terminates financial obligations, placing it squarely in the Financial category. Misuse could cancel active subscriptions or restore unwanted ones, with real monetary consequences.

From the tool's definition Cancel or restore a Telegram Stars subscription (payments.ChangeStarsSubscription). Pass canceled=true to cancel an active subscription before its next renewal, or false to restore a previously canceled one.

Documented attack patterns abuse exactly the kind of access telegram-change-stars-subscription gives an agent:

POLICY

How to control telegram-change-stars-subscription

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-Telegram, and nothing reaches the server without passing your rules. This is the rule we recommend for telegram-change-stars-subscription:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "telegram-change-stars-subscription": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to telegram-change-stars-subscription is blocked until a human approves it. The rest of the server keeps working.

Create a free account and register MCP-Telegram — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

GATE THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP-Telegram tools

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Go deeper

Critical-risk tools in MCP-Telegram → 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 telegram-change-stars-subscription

What does the telegram-change-stars-subscription tool do? +

Cancel or restore a Telegram Stars subscription (payments.ChangeStarsSubscription). Pass canceled=true to cancel an active subscription before its next renewal, or false to restore a previously canceled one. Opt-in: register only when MCP_TELEGRAM_ENABLE_STARS=1. It is categorised as a Financial tool in the MCP-Telegram MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on telegram-change-stars-subscription? +

Register the MCP-Telegram MCP server in PolicyLayer and add a rule for telegram-change-stars-subscription: 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-Telegram. Nothing to install.

What risk level is telegram-change-stars-subscription? +

telegram-change-stars-subscription 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 telegram-change-stars-subscription? +

Yes. Add a rate_limit block to the telegram-change-stars-subscription 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 telegram-change-stars-subscription completely? +

Set action: deny in the PolicyLayer policy for telegram-change-stars-subscription. 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 telegram-change-stars-subscription? +

telegram-change-stars-subscription is provided by the MCP-Telegram MCP server (mcp-telegram/mcp-telegram). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-Telegram tool call.

Start from MCP-Telegram, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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181 MCP-Telegram tools catalogued and risk-classified — across an index of 43,000+ MCP servers.