execute_swap · MERX - TRON Resource Exchange MCP

WHAT IT DOES

What execute_swap does on MERX - TRON Resource Exchange

AI agents use execute_swap to commit financial operations through MERX - TRON Resource Exchange — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why execute_swap needs a policy

This tool performs a financial transaction — swapping tokens on a decentralized exchange (SunSwap V2). Token swaps move assets/funds and commit financial obligations. Use of a private key confirms real on-chain transactions. Misuse by an AI agent could result in irreversible loss of funds, making this critical severity.

From the tool's definition Execute a token swap on SunSwap V2. Requires TRON_PRIVATE_KEY.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute_swap Approval-gated

Any call to execute_swap 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": {
    "execute_swap": {
      "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 MERX - TRON Resource Exchange, so you can run agents against it safely.

FAQ

Questions about execute_swap

What does the execute_swap tool do? +

Execute a token swap on SunSwap V2. Requires TRON_PRIVATE_KEY. It is categorised as a Financial tool in the MERX - TRON Resource Exchange MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on execute_swap? +

Register the MERX - TRON Resource Exchange MCP server in PolicyLayer and add a rule for execute_swap: 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 MERX - TRON Resource Exchange. Nothing to install.

What risk level is execute_swap? +

execute_swap 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 execute_swap? +

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

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

execute_swap is provided by the MERX - TRON Resource Exchange MCP server (Hovsteder/merx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.