swap_execute · Bitcoin wallet MCP server MCP: Risk & Policy

WHAT IT DOES

What swap_execute does on Bitcoin wallet MCP server

AI agents use swap_execute to commit financial operations through Bitcoin wallet MCP server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why swap_execute needs a policy

This tool performs a financial transaction — swapping tokens through a decentralized exchange — which directly moves or commits crypto assets. It falls squarely in the Financial category, the most severe, as misuse could result in immediate and potentially irreversible loss of funds at scale.

From the tool's definition Execute a token swap via DEX smart contract call

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

swap_execute Approval-gated

Any call to swap_execute 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": {
    "swap_execute": {
      "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 Bitcoin wallet MCP server, so you can run agents against it safely.

FAQ

Questions about swap_execute

What does the swap_execute tool do? +

Execute a token swap via DEX smart contract call. It is categorised as a Financial tool in the Bitcoin wallet MCP server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on swap_execute? +

Register the Bitcoin wallet MCP server MCP server in PolicyLayer and add a rule for swap_execute: 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 Bitcoin wallet MCP server. Nothing to install.

What risk level is swap_execute? +

swap_execute 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 swap_execute? +

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

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

swap_execute is provided by the Bitcoin wallet MCP server MCP server (markmhendrickson/mcp-server-bitcoin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.