Welcome To Our

Domain Availability API

Below you can see some Domain Availability API functionalities.

Number 1 icon

Domain availability checks

We believe that there are still great domain names that are available for registration, you just have to look hard enough! Massive amounts of domain availability lookups can be used for various researches, for finding domains for SEO purposes, for building a new domain checker, and for various other purposes.

Number Two Icon

Is this domain taken?

Some of our clients are finding great available domains for their clients, and some of our clients are looking for available domains that recently expired, but have some traffic on them. Whatever the reason, our domain availability API can help you find those great available domains you are looking for!

Number Three Icon

We are out of 4 letter domains

Back in December, 2013 we used our domain availabiltiy API to check all the 4-letter combinations .com domains. AAAA.COM up to ZZZZ.COM. It turns out they were all registered. There are many ways you can use our Domain Availabilty API, but we think this is one was a bit special.

Number 4 Icon

Fast, cheap and simple

Our Domain Availability API with XML or JSON outputs delivers fast results! It’s a great solution in case you need a faster and cheaper API than our Whois API, and you are OK with an occasional inacurate response with domains in redemption period. Signup and get a free test account!

Harper Reed, Modest Inc headshot

I am always on a lookout for obscure APIs and want to get my hands on them before everybody else. Same with WhoAPI, only I used the heck out of them!

Modest Inc.

Harper Reed

Enterprise
Monthly
$ 352
5,000,000 requests / month
  • Top gTLDs & ccTLDs
  • JSON or XML Rest API
  • One Additional TLD per month (pending availability)
  • Check over 500 million domain names
  • Money-back guarantee
  • Console
  • VIP support
  • SLA
  • Payable by credit card, wire, ACH, Link or G-Pay
  • Enterprise
Business
Monthly
$ 99
1,000,000 requests / month
  • Top gTLDs & ccTLDs
  • JSON or XML Rest API
  • One Additional TLD per month (pending availability)
  • Check over 500 million domain names
  • Money-back guarantee
  • Console
  • Priority support
  • SLA
  • Payable by credit card, wire, ACH, Link or G-Pay
  • Good for businesses
Startups
Monthly
WhoAPI.com Birthday
$ 49
$ 24
200,000 requests / month
  • Top gTLDs & ccTLDs
  • JSON or XML Rest API
  • Check over 500 million domain names
  • Money-back guarantee
  • Console
  • Priority support
  • Payable by credit card, wire, ACH, Link or G-Pay
  • Good for startups
Freelancers
Monthly
$ 23
40,000 requests / month
  • Top gTLDs & ccTLDs
  • JSON or XML Rest API
  • Check over 500 million domain names
  • Money-back guarantee
  • Console
  • Email support
  • Payable by credit card, Link or G-Pay
  • Good for freelancers and hobbyists

Promotion

Get 10,000 API requests!

For new users only. You don’t need a credit card. 30 days. Your first API request as soon as you signup.