resolve-name

Resolve an ENS name to an Ethereum address

Part of the ENS MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

JustaName-id/ens-mcp-server Write Risk 2/5

// WHEN AI AGENTS USE THIS TOOL

AI agents use resolve-name to create or modify resources in ENS MCP Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

// WHY ENFORCE A POLICY ON RESOLVE-NAME

Without a policy, an AI agent could call resolve-name repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach ENS MCP Server.

// RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

justaname-id-ens-mcp-server.yaml

tools:
  resolve-name:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full ENS MCP Server policy for all 8 tools.

// DETAILS

Tool Name resolve-name

Category Write

MCP Server ENS MCP Server MCP Server

Risk Level Medium

// MORE ENS MCP SERVER TOOLS

Read check-availability Read get-all-records Read get-name-history Read get-registration-price Read get-subdomains Read get-text-record Read reverse-lookup

// WHAT CAN GO WRONG

Agents calling write-class tools like resolve-name have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER WRITE TOOLS ACROSS MCP SERVERS

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

AbraFlexi contact_create AbraFlexi contact_update AbraFlexi evidence_create AbraFlexi evidence_update AbraFlexi invoice_issued_update AbraFlexi invoice_received_create

// RELATED READING

// FAQ

What does the resolve-name tool do? +

Resolve an ENS name to an Ethereum address. It is categorised as a Write tool in the ENS MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on resolve-name? +

Add a rule in your Intercept YAML policy under the tools section for resolve-name. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the ENS MCP Server MCP server.

What risk level is resolve-name? +

resolve-name is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit resolve-name? +

Yes. Add a rate_limit block to the resolve-name rule in your Intercept 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 resolve-name completely? +

Set action: deny in the Intercept policy for resolve-name. 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 resolve-name? +

resolve-name is provided by the ENS MCP Server MCP server (JustaName-id/ens-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

resolve-name

Enforce policies on ENS MCP Server