get_payment_link

THE RISK

Critical Risk

Why get_payment_link needs a policy

Although the tool only retrieves a payment URL (a Read-like action), its sole purpose is to facilitate a financial purchase. Under the severity-ordering rule, Financial outranks Read. Misuse could direct users to unintended purchases or fraudulent payment links, making the blast radius high.

From the tool's definition 'Get URL to purchase a report on the website' — the tool's explicit purpose is to initiate a purchase transaction, committing a financial obligation.

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

POLICY

How to control get_payment_link

PolicyLayer is an MCP gateway — it sits between your AI agents and ZiweiAI, and nothing reaches the server without passing your rules. This is the rule we recommend for get_payment_link:

policy.json

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

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

Create a free account and register ZiweiAI — 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 ZiweiAI tools

Read get_report_content Get polished report content. Pass generate params (gender, dt, y, m, d, h, etc.) plus lang Read list_my_reports List your purchased ZiweiAI reports (consumer list). Read list_report_types List available ZiweiAI report types (paper codes: ming, ln, lc, ll, lr, cp, dh).

All 4 ZiweiAI tools →

Financial tools on other servers

0xarchive web3_subscribe Math MCP Server financial_calculator MCP Kling generate_video MCP Uber Server uber_request_ride

Go deeper

Critical-risk tools in ZiweiAI → 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 get_payment_link

What does the get_payment_link tool do? +

Get URL to purchase a report on the website. paper: ming, ln, lc, ll, lr, cp, dh. It is categorised as a Financial tool in the ZiweiAI MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on get_payment_link? +

Register the ZiweiAI MCP server in PolicyLayer and add a rule for get_payment_link: 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 ZiweiAI. Nothing to install.

What risk level is get_payment_link? +

get_payment_link 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 get_payment_link? +

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

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

get_payment_link is provided by the ZiweiAI MCP server (timmy9527/agentziwei). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ZiweiAI tool call.

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

CHECK YOUR STACK →