Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453

Domain availability and expiry intelligence via RDAP, the WHOIS successor

Domain availability and expiry intelligence via RDAP, the WHOIS successor. Queries the authoritative registry for any RDAP-enabled TLD: free domains return registered:false, taken ones return registrar, creation and expiry dates, nameservers and EPP status codes. TLDs without RDAP coverage return supported:false. Built for agents that buy, monitor or vet domains.

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2000 (raw units)
price
104
calls / 30d
5
unique payers
2026-09-09
updated

Provider

402utils.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 60
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "domain": "example.com"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "createdAt": "1995-08-14T04:00:00Z",
          "domain": "example.com",
          "expiresAt": "2026-08-13T04:00:00Z",
          "nameservers": [
            "a.iana-servers.net",
            "b.iana-servers.net"
          ],
          "registered": true,
          "registrar": "RESERVED-Internet Assigned Numbers Authority",
          "status": [
            "client delete prohibited",
            "client transfer prohibited",
            "client update prohibited"
          ],
          "supported": true
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "description": "Query string only.",
              "properties": {
                "domain": {
                  "description": "Domain to look up, e.g. example.com. LDH/punycode form; no scheme, path or IP (required).",
                  "type": "string"
                }
              },
              "required": [
                "domain"
              ],
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "createdAt": {
                  "format": "date-time",
                  "type": "string"
                },
                "domain": {
                  "type": "string"
                },
                "expiresAt": {
                  "format": "date-time",
                  "type": "string"
                },
                "nameservers": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "registered": {
                  "description": "Absent when supported=false.",
                  "type": "boolean"
                },
                "registrar": {
                  "type": "string"
                },
                "status": {
                  "description": "EPP status codes as reported by the registry.",
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "supported": {
                  "description": "False when the TLD publishes no RDAP service (many ccTLDs).",
                  "type": "boolean"
                }
              },
              "required": [
                "domain",
                "supported"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://402utils.com/v1/domain-check"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://402utils.com/v1/domain-check");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://402utils.com/v1/domain-check")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/5889.json, and this resource appears in /discovery/resources and /discovery/search.