# TLD Info Lookup — x402.agentutility.ai

> TLD Info Lookup — x402.agentutility.ai is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns registry operator, type (gTLD/ccTLD/sTLD), country, introduction year, and notes for any top-level domain

## Facts

- Endpoint: POST https://x402.agentutility.ai/tld-info
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tld-info-lookup-x402-agentutility-ai-8a022353
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JHcGma8_1henIW5rzytCg

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 tld-info-lookup-x402-agentutility-ai-8a022353 -d '<json body>'
```

Example prompt: Can you look up whether .io is a ccTLD or gTLD, who the registry operator is, and what year it was introduced?

## When to prefer this

Use this endpoint when an agent needs authoritative metadata about a specific top-level domain — its type, operator, country, or launch year — especially for the ~80 most common TLDs where the in-handler dictionary provides reliable data. Prefer this over general web search when you need structured, machine-readable TLD facts for downstream logic such as domain validation, geographic inference from ccTLDs, or registry compliance checks.

## Known failure modes

- Unrecognized or very obscure TLD — returns a structural guess rather than authoritative data
- Malformed input (e.g., including the dot incorrectly or passing a full domain instead of just the TLD) — may return unexpected results
- Network or payment processing failure — x402 payment rejected or timed out

## How this service works

TLD info / top-level domain registry lookup / ccTLD vs gTLD / TLD introduction year / new gTLD registry. For any top-level domain, returns the registry operator, type (gTLD / ccTLD / sTLD), country (for ccTLDs), introduction year, and notes. In-handler dictionary covers ~80 of the most common TLDs; falls back to a structural guess for unrecognized TLDs.

## Output

A structured record for the requested TLD containing: the registry operator name, TLD type classification (gTLD, ccTLD, or sTLD), associated country (for ccTLDs), year the TLD was introduced, and any relevant notes. For unrecognized TLDs not in the ~80-entry dictionary, a structural best-guess is returned.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "tld"
     ],
     "properties": {
      "tld": {
       "type": "string",
       "description": "TLD without leading dot (e.g. 'ai', 'com', 'co.uk' uses just 'uk')."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "tld": {
       "type": "string"
      },
      "type": {
       "type": "string"
      },
      "notes": {
       "type": "null"
      },
      "source": {
       "type": "string"
      },
      "country": {
       "type": "string"
      },
      "is_valid": {
       "type": "boolean"
      },
      "registry": {
       "type": "string"
      },
      "intro_year": {
       "type": "integer"
      },
      "in_dictionary": {
       "type": "boolean"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tld": "ai",
  "type": "ccTLD",
  "notes": null,
  "source": "in-handler IANA dictionary",
  "country": "Anguilla",
  "is_valid": true,
  "registry": "Government of Anguilla",
  "intro_year": 1995,
  "in_dictionary": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tld-info-lookup-x402-agentutility-ai-8a022353/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agentutility.ai](https://www.zero.xyz/host/x402.agentutility.ai/llms.txt)