One API call.
Every TLD. Every price.
Checks availability across 15 TLDs with price comparison
See what you get
One API call returns availability, pricing from multiple registrars, and registration data across all your TLDs.
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}Price comparison across registrars
See registration and renewal prices from Cloudflare, Porkbun, NameSilo, and Dynadot side by side. Find the cheapest option instantly.
Expiry monitoring with webhooks
Watch any registered domain. Get HMAC-signed webhook notifications at 30, 7, and 1 day before expiry — configurable per domain.
50+ TLDs
.com, .io, .dev, .ai, .xyz, and more — one API call.
Developer-first API
Structured JSON, rate limit headers, comprehensive error codes.
Trending domains
See what names are being searched, expiring soon, or newly available.
Three-tier cache
Redis, Postgres index, then RDAP. Sub-second responses for repeat queries.
Free to start
3,000 queries per month on the free tier. No credit card required.
View all plans and pricing →Ship in minutes
One endpoint. Structured JSON. That’s it.
$ curl -X POST https://api.namecrawl.dev/v1/check \
-H “Authorization: Bearer nc_live_...” \
-d ‘{"domain":"mybrand","tlds":[".com",".io",".dev"]}’Start checking domains now
Free tier includes 3,000 queries per month. No credit card required.