The best Ruby API for your domains

👋 Hey RubyConf! This is where it all started. We launched at RubyConf in 2010. Now, we're celebrating 10 years thanks to you.

Get your DNS and domains running quickly with our API.

Don't miss out our Escape Room View schedule
Starting at 3:35PM Central Time on Tue, Nov 17. Discover clues, solve puzzles, and escape our room before the time is up!

Get a free Ruby API T-shirt when subscribing to a plan.

T-shirt + 30-day trial. See giveaway rules
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Integrate in minutes with our API

Manage DNS records

Create and update any record type on any zone. Use our ALIAS record to point the apex of your domain to any hosting provider.

Check domain availability

Find out if a domain is available before you attempt to register it.

Register, transfer, and renew domains

Add domains to your account automatically. Manage transfers and renewals from your own scripts.

Administrate SSL Certificates

Request, issue, and install your Let's Encrypt ™ certificates. Pair them with our HTTPS redirector to redirect requests to a different domain without any additional hosting configuration.

We're giving away a T-shirt with every sign-up!

Subscribe to any plan, and get this limited edition Ruby API T-shirt. Already a customer and using our Ruby API? Email us and we'll be happy to send you a T-shirt.

Celebrate the launch of DNSimple with us! Get your T-shirt + 30-day trial.

Start your free 30-day trial

Our API can save you hours each month. Update DNS records, request SSL certificates, and transfer or register new domains from your application.

After using several DNS software options, DNSimple turned out to be the easiest to use, most cost-effective at scale and the most well-documented tool. Our API integrations at checkout and in our control panel have worked seamlessly with DNSimple without issue since deployment. We’re thrilled with its performance.

Seth Mattox, APEX Hosting

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Great support when you need it

I am always so impressed with @dnsimple. Sent them an email and @aeden himself answered. Why do not all CEOs field customer questions? It builds a lifetime of value!


Big yes to DNSimple. Transferred a bunch of domains to them today. *They* also contacted *me* about an issue I had the other day. Just all round great people.


Kudos to Ole. Was able to diagnose my problem with AWS CloudFront. DNSimple was working perfectly all along. Reliable service and support folks who fix my "other problem" rather than just say, "it's not us". A sincere "Thank You" to you all.


Giveaway Rules

1. To claim your limited-edition T-shirt, you must subscribe to a new subscription for a Personal, Professional, or Business plan.

2. Upgrading or downgrading any plan to which you are already subscribed will not be considered a new subscription for the purposes of this giveaway.

3. If you subscribed to DNSimple in the past, cancelled your subscription, and want to re-subscribe, that is considered a new subscription and makes you eligible for the limited-edition T-shirt.

4. To claim your limited-edition T-shirt, your subscription must be active and in good standing.

5. Partial refunds on yearly subscriptions are not possible. DNSimple does not issue partial refunds for cancelled subscriptions.

6. If we are unable to ship to your country of residence, the DNSimple team will find a suitable replacement at their discretion. The T-shirt cannot be substituted for its monetary value.

7. The limited-edition T-shirt will be shipped between 5 to 8 weeks after the purchase of a new subscription. DNSimple and its team members are not responsible or liable for lost packages or delayed shipping times.

dnsimple is a registered trademark of DNSimple Corporation Reg. No. US 5,573,857.