transferFromERC20

Transfer ERC20 tokens from one address to another (requires approval)

SERVERMCP Ethers Wallet SOURCEcrazyrabbitltc/mcp-ethers-server

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/crazyrabbitltc-mcp-ethers-server/transferfromerc20.md

WHAT IT DOES

What transferFromERC20 does on MCP Ethers Wallet

AI agents use transferFromERC20 to commit financial operations through MCP Ethers Wallet, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why transferFromERC20 is rated Critical

This tool moves money or commits financial obligations by transferring ERC20 tokens, which represent financial value on the Ethereum blockchain. Even though it requires prior approval, the tool itself executes the irreversible transfer of funds. Financial category is the most severe applicable, taking precedence over Execute. Misuse by an AI agent could result in loss of user funds with no recovery mechanism.

From the tool's definition Tool name 'transferFromERC20' and description 'Transfer ERC20 tokens from one address to another' directly indicates movement of financial assets (cryptocurrency tokens) between addresses.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs transferFromERC20 safely

PolicyLayer is an MCP gateway: it sits between your AI agents and MCP Ethers Wallet, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For transferFromERC20, this is the rule to start with:

transferFromERC20 Approval-gated

Any call to transferFromERC20 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": {
    "transferFromERC20": {
      "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 MCP Ethers Wallet, apply this rule, and every transferFromERC20 call is checked against it from then on.

FAQ

Questions about transferFromERC20

What does the transferFromERC20 tool do? +

Transfer ERC20 tokens from one address to another (requires approval). It is categorised as a Financial tool in the MCP Ethers Wallet MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on transferFromERC20? +

Register the MCP Ethers Wallet MCP server in PolicyLayer and add a rule for transferFromERC20: 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 MCP Ethers Wallet. Nothing to install.

What risk level is transferFromERC20? +

transferFromERC20 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 transferFromERC20? +

Yes. Add a rate_limit block to the transferFromERC20 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 transferFromERC20 completely? +

Set action: deny in the PolicyLayer policy for transferFromERC20. 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 transferFromERC20? +

transferFromERC20 is provided by the MCP Ethers Wallet MCP server (crazyrabbitltc/mcp-ethers-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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