getERC721TokensOfOwner

Get all NFTs owned by an address in a specific collection, with optional metadata

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/geterc721tokensofowner.md

WHAT IT DOES

What getERC721TokensOfOwner does on MCP Ethers Wallet

AI agents call getERC721TokensOfOwner 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 getERC721TokensOfOwner is rated Low

This tool queries and returns information about NFT ownership and metadata. It performs no writes, deletions, contract executions, or financial transactions. The function signature and purpose align with read-only blockchain data retrieval.

From the tool's definition Tool name "getERC721TokensOfOwner" and description "Get all NFTs owned by an address in a specific collection, with optional metadata" indicate a read-only query operation that retrieves existing blockchain data without modifying state or triggering transfers.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs getERC721TokensOfOwner 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 getERC721TokensOfOwner, this is the rule to start with:

getERC721TokensOfOwner Allowed

getERC721TokensOfOwner 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": {
    "getERC721TokensOfOwner": {}
  }
}

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 getERC721TokensOfOwner call is checked against it from then on.

FAQ

Questions about getERC721TokensOfOwner

What does the getERC721TokensOfOwner tool do? +

Get all NFTs owned by an address in a specific collection, with optional metadata. 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 getERC721TokensOfOwner? +

Register the MCP Ethers Wallet MCP server in PolicyLayer and add a rule for getERC721TokensOfOwner: 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 getERC721TokensOfOwner? +

getERC721TokensOfOwner is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit getERC721TokensOfOwner? +

Yes. Add a rate_limit block to the getERC721TokensOfOwner 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 getERC721TokensOfOwner completely? +

Set action: deny in the PolicyLayer policy for getERC721TokensOfOwner. 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 getERC721TokensOfOwner? +

getERC721TokensOfOwner 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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