API v1.0

Domain Intelligence
With Every API Call

Check availability across 1,000+ TLDs, compare registrar prices, track dropped and newly registered domains, and access WHOIS/RDAP data. One API for everything.

Try the APIRead the docs

See what you get

A TLD (top-level domain) is the extension at the end of a domain name, like .com, .io, or .dev. One API call returns availability, pricing from multiple registrars, WHOIS/RDAP intelligence, and raw registration data across all your TLDs.

Try it:
200 OK
1{2  "success": true,3  "data": {4    "domain": "coolstartup",5    "results": [6      {7        "tld": ".com",8        "fqdn": "coolstartup.com",9        "available": true,10        "status": "available"11      },12      {13        "tld": ".io",14        "fqdn": "coolstartup.io",15        "available": false,16        "status": "registered",17        "registrar": "NameCheap, Inc.",18        "expiry_date": "2027-08-15T00:00:00Z"19      },20      {21        "tld": ".dev",22        "fqdn": "coolstartup.dev",23        "available": true,24        "status": "available"25      },26      {27        "tld": ".ai",28        "fqdn": "coolstartup.ai",29        "available": false,30        "status": "registered",31        "registrar": "GoDaddy.com, LLC"32      }33    ]34  },35  "meta": {36    "query_cost": 4,37    "queries_remaining": 9996,38    "cached": false39  }40}

Domain Intelligence

Track Every Domain Drop & Registration

Every day, thousands of domains expire and get deleted while new ones are registered. Our API processes ICANN zone files across 100 gTLDs daily so you can catch high-value drops, monitor competitors, and detect brand threats before anyone else.

Explore dropped domainsAPI docs
Domain SearchPowered by nameCrawl
coolstartup
Search
5 checked3 available2 taken
coolstartup.com
$8.56/yrRegister
coolstartup.dev
$10.11/yrRegister
coolstartup.io
taken
coolstartup.ai
$24.90/yrRegister
coolstartup.net
taken

Embed code

<div id="namecrawl-widget"></div>
<script src="https://namecrawl.dev/widget.js"></script>

Embeddable Widget

Add Domain Search to Any Site

Drop a single script tag onto any page and your visitors can search domain availability without leaving your site. Dark and light themes, customizable accent colors, and shadow DOM isolation so it works everywhere.

  • No dependencies, no framework lock-in. One script tag.
  • Shadow DOM isolates styles from your page.
  • Free to use. Subscribers get higher limits and more TLDs.
  • Every search links back to your site via nameCrawl.
Customize and embedWidget docs

Free to start

3,000 queries per month on the free tier. No credit card required. Upgrade anytime for higher limits, bulk checks, WHOIS data, and domain monitoring.

View plans and pricing →

Or use the CLI

Install with one command. Search domains, compare prices, and manage your account from the terminal.

Terminal
$ npx namecrawl

nameCrawl > search coolstartup

  ✓ coolstartup.com     available     $8.56/yr (porkbun)
  ✗ coolstartup.io      registered    NameCheap, Inc.
  ✓ coolstartup.dev     available     $10.11/yr (cloudflare)
  ✗ coolstartup.ai      registered    GoDaddy.com, LLC

nameCrawl > search coolstartup --tlds com,io,dev

Start checking domains now

Free tier includes 3,000 queries per month. No credit card required.

Create free accountRead the docs