send_trx · Tron MCP: Risk & Policy

WHAT IT DOES

What send_trx does on Tron

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

WHY IT NEEDS A POLICY

Why send_trx needs a policy

This tool moves real cryptocurrency (TRX) on the TRON blockchain, constituting a financial transaction that is irreversible once confirmed. Misuse by an AI agent could result in loss of funds with no ability to recover them, making this critical severity.

From the tool's definition 'Send TRX to an address' — directly transfers TRX cryptocurrency to a specified address

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_trx Approval-gated

Any call to send_trx 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": {
    "send_trx": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Tron, so you can run agents against it safely.

FAQ

Questions about send_trx

What does the send_trx tool do? +

Send TRX to an address. It is categorised as a Financial tool in the Tron MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on send_trx? +

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

What risk level is send_trx? +

send_trx 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 send_trx? +

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

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

send_trx is provided by the Tron MCP server (netts-official/tron_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.