buy_energy_direct

VALUE-MOVING OPERATION. Buy energy by signing a native TRX payment. The MCP server never broadcasts

SERVERJustlend SOURCEjustlend/mcp-server-justlend

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/justlend-mcp-server-justlend/buy-energy-direct.md

WHAT IT DOES

What buy_energy_direct does on Justlend

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

RISK

Why buy_energy_direct is rated Critical

This tool moves TRX cryptocurrency to purchase energy, constituting a financial transaction.

From the tool's definition Buy energy by signing a native TRX payment

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs buy_energy_direct safely

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

buy_energy_direct Approval-gated

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

FAQ

Questions about buy_energy_direct

What does the buy_energy_direct tool do? +

VALUE-MOVING OPERATION. Buy energy by signing a native TRX payment. The MCP server never broadcasts. It is categorised as a Financial tool in the Justlend MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on buy_energy_direct? +

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

What risk level is buy_energy_direct? +

buy_energy_direct 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 buy_energy_direct? +

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

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

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

KEEP EXPLORING

More on Justlend, and thousands of servers like it.

This server

All 104 Justlend 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 →