# ENS Name Resolver

> ENS Name Resolver is a paid API for AI agents from tools.bip-rep.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Resolves an ENS (.eth) name to its associated Ethereum address and resolver metadata

## Facts

- Endpoint: GET https://tools.bip-rep.com/ens/resolve
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ens-name-resolver-a334d168
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p3U0LtypNY5yksgj7XTkK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ens-name-resolver-a334d168
```

Example prompt: What Ethereum address does vitalik.eth resolve to? Use the ENS resolver tool and give me the full address along with the resolver contract.

## When to prefer this

Use this endpoint when you need a lightweight, pay-per-call ENS resolution without running your own Ethereum node or managing an RPC provider. Ideal for agents that need one-off .eth name lookups with minimal setup.

## Known failure modes

- ENS name not found or unregistered — returns an error or null address
- Input does not end in .eth — rejected as invalid by the schema
- ENS resolver contract misconfigured — address cannot be retrieved
- RPC node unavailable — upstream Ethereum node failure
- Rate limiting or payment failure via x402 protocol

## How this service works

Lightweight utility API for agents and operators: DNS lookups, RDAP/WHOIS domain data, HTTP probes, page metadata extraction, cryptographic hashing, JSON validation, scheduled webhooks, and exotic endpoints (Base transaction decode, ENS resolve, USGS earthquakes, cron next-run, TLS certificate report). No shell access; outbound URL tools enforce SSRF protections.

## Output

Returns the resolved Ethereum wallet address, the normalized form of the ENS name, the resolver contract address, the RPC URL used for the lookup, and the latency in milliseconds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "name"
     ],
     "properties": {
      "name": {
       "type": "string",
       "description": "ENS name to resolve (must end with .eth)"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "name": {
       "type": "string"
      },
      "address": {
       "type": "string"
      },
      "rpc_url": {
       "type": "string"
      },
      "resolver": {
       "type": "string"
      },
      "latency_ms": {
       "type": "integer"
      },
      "normalized": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ens-name-resolver-a334d168/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tools.bip-rep.com](https://www.zero.xyz/host/tools.bip-rep.com/llms.txt)