# Orbit Chain Reads: ENS Name Resolution

> Orbit Chain Reads: ENS Name Resolution is a paid API for AI agents from orbit-chain.orbit-builder.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).

Resolves ENS names to Ethereum addresses (and vice versa), including *.base.eth via CCIP, plus avatar/URL/Twitter/GitHub text records

## Facts

- Endpoint: GET https://orbit-chain.orbit-builder.workers.dev/v1/ens?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbit-chain-reads-ens-name-resolution-25066227
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O0lXXGtcb09zMfuOUW1t5

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 orbit-chain-reads-ens-name-resolution-25066227
```

Example prompt: What Ethereum address does vitalik.eth resolve to, and does it have any avatar or social profile records set?

## When to prefer this

Use this endpoint when you need to resolve ENS names (including *.base.eth subdomains via CCIP) to Ethereum addresses, reverse-resolve addresses to their primary ENS name, or retrieve ENS text records (avatar, URL, Twitter, GitHub) in a single call. It is billed only on successful resolution, making it cost-efficient for speculative lookups.

## Known failure modes

- ENS name not found or not registered → 404, no charge
- Address has no primary ENS name set → 404, no charge
- CCIP resolution failure for *.base.eth subdomains → error response
- Invalid ENS name format → malformed request error
- Public RPC rate limit or timeout → transient error

## How this service works

ENS resolve (name ⇄ address), $0.001 USDC per call: Resolve an ENS name (vitalik.eth, also *.base.eth via CCIP) to its Ethereum address, or reverse-resolve an address to its primary ENS name (forward-verified), plus avatar/url/twitter/github text records when set. Live from Ethereum mainnet via public RPC. No record returns 404 (not charged). No params = runs the example input.

## Output

Returns the resolved Ethereum address for a given ENS name, or the primary ENS name for a given address (forward-verified). Also includes any configured text records such as avatar URL, website URL, Twitter handle, and GitHub username. Returns a 404 (not charged) if no record is found.

## 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": [],
     "properties": {
      "name": {
       "type": "string",
       "description": "ENS name, e.g. vitalik.eth"
      },
      "address": {
       "type": "string",
       "description": "or an address for reverse lookup"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orbit-chain-reads-ens-name-resolution-25066227/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orbit-chain.orbit-builder.workers.dev](https://www.zero.xyz/host/orbit-chain.orbit-builder.workers.dev/llms.txt)