getERC721Owner

Get the current owner of a specific NFT token

SERVERMCP Ethers Wallet SOURCEcrazyrabbitltc/mcp-ethers-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/crazyrabbitltc-mcp-ethers-server/geterc721owner.md

WHAT IT DOES

What getERC721Owner does on MCP Ethers Wallet

AI agents call getERC721Owner to retrieve information from MCP Ethers Wallet without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why getERC721Owner is rated Low

This tool performs a read-only query to retrieve ownership information from an ERC721 contract. It has no side effects, does not execute arbitrary code, does not modify data, and does not move funds. The only risk is potential information disclosure (which NFT is owned by which address), but this is typically public blockchain data.

From the tool's definition Tool name 'getERC721Owner' and description 'Get the current owner of a specific NFT token' indicate a query operation that retrieves blockchain data without modifying state or executing code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs getERC721Owner 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 getERC721Owner, this is the rule to start with:

getERC721Owner Allowed

getERC721Owner is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "getERC721Owner": {}
  }
}

ALLOW ONLY 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 getERC721Owner call is checked against it from then on.

FAQ

Questions about getERC721Owner

What does the getERC721Owner tool do? +

Get the current owner of a specific NFT token. It is categorised as a Read tool in the MCP Ethers Wallet MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on getERC721Owner? +

Register the MCP Ethers Wallet MCP server in PolicyLayer and add a rule for getERC721Owner: 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 getERC721Owner? +

getERC721Owner is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit getERC721Owner? +

Yes. Add a rate_limit block to the getERC721Owner 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 getERC721Owner completely? +

Set action: deny in the PolicyLayer policy for getERC721Owner. 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 getERC721Owner? +

getERC721Owner 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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