prepareERC721SetApprovalForAll

Prepare an ERC721 NFT setApprovalForAll transaction for signing. Returns transaction data that can be signed and broadcast.

SERVERMCP Ethers Wallet SOURCEcrazyrabbitltc/mcp-ethers-server

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/crazyrabbitltc-mcp-ethers-server/prepareerc721setapprovalforall.md

WHAT IT DOES

What prepareERC721SetApprovalForAll does on MCP Ethers Wallet

AI agents invoke prepareERC721SetApprovalForAll to trigger actions in MCP Ethers Wallet. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why prepareERC721SetApprovalForAll is rated High

setApprovalForAll grants an operator full control over all NFTs in a wallet. While this tool only 'prepares' the transaction (returning unsigned data), it is the direct precursor to executing a high-impact blockchain operation. Misuse could result in an operator draining all NFTs from the wallet.

From the tool's definition Prepare an ERC721 NFT setApprovalForAll transaction for signing. Returns transaction data that can be signed and broadcast.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs prepareERC721SetApprovalForAll 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 prepareERC721SetApprovalForAll, this is the rule to start with:

prepareERC721SetApprovalForAll Rate-limited

prepareERC721SetApprovalForAll stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "prepareERC721SetApprovalForAll": {
      "limits": [
        {
          "counter": "prepareerc721setapprovalforall_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT 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 prepareERC721SetApprovalForAll call is checked against it from then on.

FAQ

Questions about prepareERC721SetApprovalForAll

What does the prepareERC721SetApprovalForAll tool do? +

Prepare an ERC721 NFT setApprovalForAll transaction for signing. Returns transaction data that can be signed and broadcast. It is categorised as a Execute tool in the MCP Ethers Wallet MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on prepareERC721SetApprovalForAll? +

Register the MCP Ethers Wallet MCP server in PolicyLayer and add a rule for prepareERC721SetApprovalForAll: 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 prepareERC721SetApprovalForAll? +

prepareERC721SetApprovalForAll is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit prepareERC721SetApprovalForAll? +

Yes. Add a rate_limit block to the prepareERC721SetApprovalForAll 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 prepareERC721SetApprovalForAll completely? +

Set action: deny in the PolicyLayer policy for prepareERC721SetApprovalForAll. 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 prepareERC721SetApprovalForAll? +

prepareERC721SetApprovalForAll 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.

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