resolveAnyWNS

THE RISK

Low Risk

Why resolveAnyWNS needs a policy

The tool appears to resolve addresses (likely Ethereum Name Service/WNS lookups), which is a read/query operation with no side effects. The description is truncated, but the visible text indicates it returns data without modifying state. Low severity as it only reads/resolves address data.

From the tool's definition Smart resolve: if input is an Ethereum address, returns it directly. If it

Documented attack patterns abuse exactly the kind of access resolveAnyWNS gives an agent:

POLICY

How to control resolveAnyWNS

PolicyLayer is an MCP gateway — it sits between your AI agents and Agentek Eth, and nothing reaches the server without passing your rules. This is the rule we recommend for resolveAnyWNS:

policy.json

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

resolveAnyWNS is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Agentek Eth — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Agentek Eth tools

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All 165 Agentek Eth tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about resolveAnyWNS

What does the resolveAnyWNS tool do? +

Smart resolve: if input is an Ethereum address, returns it directly. If it. It is categorised as a Read tool in the Agentek Eth MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on resolveAnyWNS? +

Register the Agentek Eth MCP server in PolicyLayer and add a rule for resolveAnyWNS: 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 Agentek Eth. Nothing to install.

What risk level is resolveAnyWNS? +

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

Can I rate-limit resolveAnyWNS? +

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

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

resolveAnyWNS is provided by the Agentek Eth MCP server (nanidao/agentek). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Agentek Eth tool call.

Start from Agentek Eth, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →