withdrawWETH

Unwrap WETH back to native ETH by withdrawing from the WETH contract. Burns your WETH and returns an equal amount of native ETH.

SERVERAgentek Eth SOURCEnanidao/agentek

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nanidao-agentek/withdrawweth.md

WHAT IT DOES

What withdrawWETH does on Agentek Eth

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

RISK

Why withdrawWETH is rated Critical

This tool executes a financial transaction that converts wrapped Ethereum (WETH) tokens to native ETH, moving cryptocurrency value. Although the conversion is 1:1, it represents an irreversible movement of financial assets from a wrapped token contract to native currency, making it a financial operation. The sibling tool 'depositWETH' confirms this server handles token conversion/financial operations.

From the tool's definition Tool description states it 'Unwrap WETH back to native ETH by withdrawing from the WETH contract' and 'Burns your WETH and returns an equal amount of native ETH.' This directly moves cryptocurrency assets (WETH to ETH conversion).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs withdrawWETH safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Agentek Eth, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For withdrawWETH, this is the rule to start with:

withdrawWETH Approval-gated

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

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Agentek Eth, apply this rule, and every withdrawWETH call is checked against it from then on.

FAQ

Questions about withdrawWETH

What does the withdrawWETH tool do? +

Unwrap WETH back to native ETH by withdrawing from the WETH contract. Burns your WETH and returns an equal amount of native ETH. It is categorised as a Financial tool in the Agentek Eth MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on withdrawWETH? +

Register the Agentek Eth MCP server in PolicyLayer and add a rule for withdrawWETH: 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 Agentek Eth. Nothing to install.

What risk level is withdrawWETH? +

withdrawWETH 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 withdrawWETH? +

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

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

withdrawWETH is provided by the Agentek Eth MCP server (nanidao/agentek). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Agentek Eth, and thousands of servers like it.

This server

All 193 Agentek Eth tools → Critical-risk tools on this server →

Across the catalogue

All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →