pm_buy

Buy outcome tokens on Polymarket prediction market

SERVERWaiaas SOURCEminhoyoo-iotrust/waiaas

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/minhoyoo-iotrust-waiaas/pm-buy.md

WHAT IT DOES

What pm_buy does on Waiaas

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

RISK

Why pm_buy is rated Critical

This tool executes a financial transaction by purchasing outcome tokens on a prediction market (Polymarket), committing real cryptocurrency funds. This directly involves financial obligations and asset transfers, making it Financial category. Severity is high because an AI agent could misuse this to spend significant funds on prediction market positions that may become worthless.

From the tool's definition Buy outcome tokens on Polymarket prediction market

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pm_buy safely

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

pm_buy Approval-gated

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

FAQ

Questions about pm_buy

What does the pm_buy tool do? +

Buy outcome tokens on Polymarket prediction market. It is categorised as a Financial tool in the Waiaas MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on pm_buy? +

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

What risk level is pm_buy? +

pm_buy 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 pm_buy? +

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

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

pm_buy is provided by the Waiaas MCP server (minhoyoo-iotrust/waiaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Waiaas, and thousands of servers like it.

This server

All 126 Waiaas tools → Critical-risk tools on this server →

Across the catalogue

buy_now on Ebay → All critical-risk MCP tools → The MCP Attack Database →

Guides

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