# NetIntel Bulk Domain Availability Check

> NetIntel Bulk Domain Availability Check is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Checks availability, registration status, registrar, and expiry for multiple domains in a single call, returning a graded report with findings.

## Facts

- Endpoint: POST https://netintel-production-440c.up.railway.app/bulk-domain/check
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/netintel-bulk-domain-availability-check-a8252197
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7CtBk9fIElGWknrvRtJ8j

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 netintel-bulk-domain-availability-check-a8252197 -d '<json body>'
```

Example prompt: Can you check domain availability for acme.com, acmehq.io, acme.io, acmehq.com, acmeapp.com, and acmeapp.io — I want to know which ones are taken, who owns them, when they expire, and get an overall grade on how available this name set is?

## When to prefer this

Use this endpoint when you need to check availability and registration details for multiple domains at once and want a summarized grade/score alongside per-domain details. Prefer it over single-domain lookups when evaluating name variants or TLD combinations for a brand or startup, and when you need registrar and expiry metadata in addition to simple availability.

## Known failure modes

- Invalid or malformed domain names return validation errors
- Too many domains in a single bulk request may be rejected
- Payment failure via x402 micropayment results in 402 Payment Required response
- Network timeouts if upstream WHOIS/registry sources are slow
- Unrecognized TLDs may return incomplete data

## How this service works

Check availability of many domain names across multiple TLDs in a single call — submit up to 50 name/TLD combinations and get back per-domain registration status, registrar, and expiry concurrently, so agents can scan an entire naming shortlist or brand portfolio in one request instead of dozens.

## Output

A graded report (letter grade A–F and numeric score 0–100) covering each domain: whether it is registered or available, the registrar if taken, expiry date and days until expiry, plus summary counts of available vs taken domains, a list of names available across all checked TLDs, and rule-based findings explaining any score deductions.

## 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": {
     "type": "object",
     "required": [
      "names"
     ],
     "properties": {
      "tlds": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "TLDs to check, with or without leading dot (default: [\".com\",\".net\",\".org\",\".io\",\".co\"]). Total names × tlds must not exceed 50."
      },
      "names": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "1-50 domain names to check (alphanumeric + hyphens, 2-63 chars each), e.g. [\"acme\", \"acmehq\"]"
      }
     }
    },
    "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": {
      "grade": {
       "type": "string"
      },
      "score": {
       "type": "number"
      },
      "results": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "findings": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "taken_count": {
       "type": "number"
      },
      "total_checked": {
       "type": "number"
      },
      "available_count": {
       "type": "number"
      },
      "names_available_all_tlds": {
       "type": "array",
       "items": {
        "type": "string"
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "grade": "C",
  "score": 65,
  "results": [
   {
    "tld": "com",
    "name": "acme",
    "domain": "acme.com",
    "status": "registered",
    "available": false,
    "registrar": "GoDaddy LLC",
    "expires_at": "2025-06-01T00:00:00Z",
    "days_until_expiry": 79
   },
   {
    "tld": "io",
    "name": "acmehq",
    "domain": "acmehq.io",
    "status": "available",
    "available": true,
    "registrar": null,
    "expires_at": null,
    "days_until_expiry": null
   }
  ],
  "findings": [
   {
    "rule": "low_availability",
    "detail": "Only 2 of 6 combinations available",
    "deduction": -35
   }
  ],
  "taken_count": 4,
  "total_checked": 6,
  "available_count": 2,
  "names_available_all_tlds": [
   "acmehq"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/netintel-bulk-domain-availability-check-a8252197/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from netintel-production-440c.up.railway.app](https://www.zero.xyz/host/netintel-production-440c.up.railway.app/llms.txt)