Critical-risk tools in MCP Ethers Wallet

Critical severity MCP Ethers Wallet MCP Server 16 of 69 tools

16 of the 69 tools in MCP Ethers Wallet are classified as critical risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.

Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.

Tools at critical risk

prepareERC1155BatchTransfer Financial

Prepare an ERC1155 batch transfer transaction for signing. Returns transaction data that can be signed and broadcast.
safeBatchTransferERC1155 Financial

Safely transfer multiple tokens from the connected wallet to another address in a single transaction
safeTransferERC1155 Financial

Safely transfer tokens from the connected wallet to another address
safeTransferERC721 Financial

Safely transfer an NFT from the connected wallet to another address, with additional data
transferERC20 Financial

Transfer ERC20 tokens from the connected wallet to another address
transferERC721 Financial

Transfer an NFT from the connected wallet to another address
transferFromERC20 Financial

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

transferNFT
ethSign Financial

ethSign
prepareERC20Approval Financial

Prepare an ERC20 token approval transaction for signing. Returns transaction data that can be signed and broadcast.
prepareTransaction Financial

Prepare a basic ETH transfer transaction for signing. Returns transaction data that can be signed and broadcast.
approveERC20 Financial

Approve a spender to use a certain amount of your ERC20 tokens
approveNFT Financial

approveNFT
sendSignedTransaction Financial

Send a signed transaction to the blockchain network. Returns transaction hash and receipt.
sendTransaction Financial

sendTransaction
sendTransactionWithOptions Financial

sendTransactionWithOptions

Attacks that target this class

Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.

Destructive Action Autonomy
Privilege escalation via admin-only tools
Data exfiltration via tool chaining
Runaway Tool Loops

Critical-risk tools in MCP Ethers Wallet

Tools at critical risk

Attacks that target this class

More on MCP Ethers Wallet

Enforce policy on every MCP Ethers Wallet tool call.