bnb_swap

THE RISK

Critical Risk

This tool performs on-chain token swaps using a private key, directly committing financial transactions on a DEX. It moves real cryptocurrency assets, constitutes an irreversible financial operation, and misuse could drain funds. The server description explicitly states it enables agents to 'spend' and 'earn' cryptocurrency, confirming Financial category at critical severity.

From the tool's definition Swap BEP-20 tokens on PancakeSwap V3 (requires private key)

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

HOW TO CONTROL BNB_SWAP

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

policy.json

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

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

Create a free account and register Agenti — 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

More Agenti tools

Financial jupiter_swap Execute a token swap via Jupiter v6 aggregator. Best-route swap across all Solana DEXes. R Financial solana_deploy_token Deploy a new SPL token on Solana with custom name, symbol, decimals, and supply. Requires Financial agenti_pay Make an HTTP request and automatically pay if the server requires x402 payment. Returns th Financial bnb_transfer Send BEP-20 tokens (USDT, BUSD, or any BEP-20) to an address on BNB Chain Financial pay Pay for an HTTP resource — automatically handles 402 Payment Required (x402 protocol) Financial solana_transfer Send SOL or any SPL token to another Solana address. Requires AGENTI_SOLANA_PRIVATE_KEY. Financial binance_place_order Place a market or limit buy/sell order. Requires BINANCE_API_KEY + BINANCE_SECRET_KEY. Financial bitrefill_check_order Poll a Bitrefill invoice until it completes and return the redemption code.

All 73 Agenti tools →

Financial tools on other servers

Atv build_deposit_tx Bitcoin MCP Server pay_invoice AbraFlexi bank_transaction_create Hilanet MCP decrease_coworker_salary

Go deeper

Critical-risk tools in Agenti → 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.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

What does the bnb_swap tool do? +

Swap BEP-20 tokens on PancakeSwap V3 (requires private key). It is categorised as a Financial tool in the Agenti MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on bnb_swap? +

Register the Agenti MCP server in PolicyLayer and add a rule for bnb_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 Agenti. Nothing to install.

What risk level is bnb_swap? +

bnb_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 bnb_swap? +

Yes. Add a rate_limit block to the bnb_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 bnb_swap completely? +

Set action: deny in the PolicyLayer policy for bnb_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 bnb_swap? +

bnb_swap is provided by the Agenti MCP server (nirholas/agenti). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Agenti tool call.

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73 Agenti tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT BNB_SWAP ON AGENTI DOES

// THE RISK

// HOW TO CONTROL BNB_SWAP

// EXPLORE