Api Endpoint

Onchain Query API

ENS name resolution in both directions on Ethereum mainnet. Pass name to resolve an ENS name to its address (forward), or pass address to get that address's primary ENS name (reverse, forward-verified so spoofed reverse records are rejected). Read straight from the ENS registry. Use it to turn vitalik.eth into an address, or to label a raw address with a human-readable name.

Open interactive test console

Offering

Provider: chain.cyberwarex.com
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://chain.cyberwarex.com/ens
MIME type: application/json
First seen: 2026-10-16T01:50:06.715Z
Last seen: 2026-11-01T19:04:02.186Z
Tags: ENS, Ethereum, name-resolution, identity, web3-domain

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2"
  }
]

Observed health

Status: Healthy
Latest latency: 1180 ms
Average latency: 2466 ms
HTTP status: 402
Last checked: 2026-11-01T19:04:02.180Z
Reachability: 85.7% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "description": "ENS name to resolve forward, e.g. vitalik.eth."
        },
        "address": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "Address to reverse-resolve to its primary ENS name."
        }
      },
      "required": [],
      "additionalProperties": false,
      "anyOf": [
        {
          "required": [
            "name"
          ]
        },
        {
          "required": [
            "address"
          ]
        }
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "additionalProperties": false,
          "anyOf": [
            {
              "required": [
                "name"
              ]
            },
            {
              "required": [
                "address"
              ]
            }
          ],
          "properties": {
            "address": {
              "description": "Address to reverse-resolve to its primary ENS name.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "name": {
              "description": "ENS name to resolve forward, e.g. vitalik.eth.",
              "type": "string"
            }
          },
          "required": [],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "address": {
              "type": [
                "string",
                "null"
              ]
            },
            "name": {
              "type": [
                "string",
                "null"
              ]
            },
            "note": {
              "description": "Set when a reverse record failed forward verification.",
              "type": [
                "string",
                "null"
              ]
            },
            "resolved": {
              "type": "boolean"
            }
          },
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}