# Hermes x402 ENS Resolver

> Hermes x402 ENS Resolver is a paid API for AI agents from api.zlovev.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-18).

Resolves ENS names to Ethereum addresses (forward lookup) and Ethereum addresses to ENS names (reverse lookup) via a pay-per-call USDC micropayment API.

## Facts

- Endpoint: GET https://api.zlovev.com/api/ens/resolve
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hermes-x402-ens-resolver-43a0fb0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BFoIkvYc3uFgLPBn2MAnU

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 hermes-x402-ens-resolver-43a0fb0e
```

Example prompt: What Ethereum address does vitalik.eth resolve to? Also check if the reverse record is forward-confirmed.

## When to prefer this

Choose this endpoint when you need no-signup, pay-per-use ENS resolution billed in USDC on Base via the x402 protocol. Ideal for AI agents that need to resolve .eth names or reverse-lookup wallet addresses without maintaining API keys or subscriptions. Prefer over free public resolvers when you need a reliable, structured JSON response with both forward and reverse confirmation in a single call.

## Known failure modes

- ENS name not registered — returns resolved: false with error details
- Address has no primary ENS reverse record — reverse object shows status other than ok
- Malformed ENS name (missing dot) — schema validation error
- RPC node unavailable — error in the errors array
- Rate limiting or payment failure — HTTP 402 if USDC payment is not processed

## How this service works

Pay-per-call data API for AI agents. No API key, no account, no signup — pay USDC on Base (eip155:8453) per request; free /api/meta lists all 22 endpoints. One call each: web page to LLM-ready text and link previews; China A-share quotes and limit-up pool; Chinese text and pinyin; Base/Ethereum on-chain reads (address, token, ERC-20 balances, tx, blocks, transfer history, gas price in USD); NFT records (collection, owner, and ipfs:// tokenURI resolved through public gateways); full-page screenshots; email verification without sending mail; ENS forward/reverse resolution; smart-contract due diligence (ABI, verified source, proxy); token security facts (owner, renounced ownership, paused, bytecode capability selectors); domain dossier (RDAP, DNS, TLS certificate, HTTP facts, hosting network).

## Output

Returns a JSON object with the resolved Ethereum address, the ENS name, forward lookup details (namehash, resolver contract, status), reverse lookup details (forward-confirmed flag, status), the network (eip155:1 for Ethereum mainnet), a resolved boolean, and any errors encountered during resolution.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "name": {
       "type": "string",
       "description": "ENS name to resolve forward, e.g. 'vitalik.eth' (at least one dot)"
      },
      "address": {
       "type": "string",
       "description": "0x address for a reverse lookup (address -> primary ENS name)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "name": "vitalik.eth",
  "hosts": [
   "ethereum-rpc.publicnode.com"
  ],
  "errors": [],
  "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
  "forward": {
   "name": "vitalik.eth",
   "status": "ok",
   "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
   "namehash": "0xee6c4522ab0ada1b1e4c6f5a5c4f0b1a4b0d1c0e...",
   "resolver": "0x231b0ee14048e9dccd1d247744d114a4eb5e8e63"
  },
  "network": "eip155:1",
  "reverse": {
   "name": "vitalik.eth",
   "status": "ok",
   "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
   "forward_confirmed": true
  },
  "resolved": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hermes-x402-ens-resolver-43a0fb0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.zlovev.com](https://www.zero.xyz/host/api.zlovev.com/llms.txt)