execute_swap

THE RISK

Critical Risk

Why execute_swap needs a policy

A token swap irreversibly exchanges one cryptocurrency asset for another on a blockchain. This directly moves financial assets, constituting a financial operation. On-chain swaps cannot be reversed once confirmed, and in a DeFi context the blast radius is critical — an AI agent could swap arbitrary amounts at unfavorable prices, drain wallets, or be manipulated into malicious trades.

From the tool's definition Execute a token swap via Jupiter aggregator — performs live DeFi trading operations moving tokens/funds on-chain

Documented attack patterns abuse exactly the kind of access execute_swap gives an agent:

POLICY

How to control execute_swap

PolicyLayer is an MCP gateway — it sits between your AI agents and Boosty MCP DeFi Platform, and nothing reaches the server without passing your rules. This is the rule we recommend for execute_swap:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "execute_swap": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to execute_swap is blocked until a human approves it. The rest of the server keeps working.

Create a free account and register Boosty MCP DeFi Platform — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Boosty MCP DeFi Platform tools

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All 80 Boosty MCP DeFi Platform tools →

Financial tools on other servers

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Go deeper

Critical-risk tools in Boosty MCP DeFi Platform → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about execute_swap

What does the execute_swap tool do? +

Execute a token swap via Jupiter aggregator. It is categorised as a Financial tool in the Boosty MCP DeFi Platform 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 Boosty MCP DeFi Platform 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 Boosty MCP DeFi Platform. 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 Boosty MCP DeFi Platform MCP server (nirholas/boosty). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Boosty MCP DeFi Platform tool call.

Start from Boosty MCP DeFi Platform, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →