billing_topup

A financial tool on the Postking MCP server.

SERVERPostking Mcp SOURCEpostking-mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/io-github-bitsandtea-postking-mcp/billing-topup.md

WHAT IT DOES

What billing_topup does on Postking Mcp

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

RISK

Why billing_topup is rated Critical

The 'topup' suffix in a billing context universally refers to adding money or credits to a wallet or account, which constitutes a financial transaction. The description is empty, so confidence is reduced, but the naming pattern and billing-focused sibling tools make this classification highly likely. Misuse could result in unauthorized financial charges.

From the tool's definition Tool name 'billing_topup' on a server with billing-related sibling tools (billing_subscribe, billing_wallet, billing_list_packs, billing_list_tiers) strongly implies adding funds/credits to a financial account.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs billing_topup safely

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

billing_topup Approval-gated

Any call to billing_topup 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": {
    "billing_topup": {
      "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 Postking Mcp, apply this rule, and every billing_topup call is checked against it from then on.

FAQ

Questions about billing_topup

What does the billing_topup tool do? +

billing_topup is a financial tool on the Postking MCP server. It is categorised as a Financial tool in the Postking Mcp MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on billing_topup? +

Register the Postking MCP server in PolicyLayer and add a rule for billing_topup: 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 Postking Mcp. Nothing to install.

What risk level is billing_topup? +

billing_topup 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 billing_topup? +

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

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

billing_topup is provided by the Postking MCP server (postking-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

What billing_topup does on Postking Mcp

Why billing_topup is rated Critical

The rule that runs billing_topup safely

Questions about billing_topup

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