Effortlessly scale your business
Leverage a single API for both domains and trust (TLS/SSL) certificates.
Reduce manual effort and admin time by automating registrations, renewals, transfers, and more.
Rely on a powerful platform that supports millions of registrants and some of the world’s largest digital service providers.
Deliver domains and certificates your way
Retain full control of your brand experience—our API seamlessly integrates into your platform, and OpenSRS stays behind the scenes.
Provide an intuitive self-service experience, allowing customers to buy domains and certificates without leaving your platform.
Conveniently bundle domains and certificates with your existing products and services.
Resources to simplify setup
Access comprehensive documentation with examples to help you speed up development and deployment.
Simplify API implementation with help from our knowledgeable support team, who’ll ensure you’re set up for success.
Who is the API for?
Ecommerce platforms
Bundle domain registration and certificates into your store setup flow so merchants launch with everything in place.
Software companies
Offer custom domains to your customers for their campaign pages, storefronts, and shared workplaces, all secured with trust certificates.
Business services providers
Add domain registration and certificates as part of your company formation or professional services package.
Internet service providers
Integrate domains and certificates into your internet and mobile services to provide customers with everything they need to establish an online presence.
Why choose the OpenSRS API?
Trusted by industry leaders
Empower customers to purchase, renew, transfer, manage domains, and update DNS settings from your existing UI
Offer domains and certificates as part of a subscription or package, or as a stand-alone service
Trust the brand relied on by some of the world’s top digital service providers
Leverage our powerful name suggestion tool to make finding the perfect domain easy for your customers
Leverage bulk commands for thousands of domains at once to update contact information, modify nameservers, enable WHOIS privacy, and more
Questions? Let's connect.
FAQs
How do I get started with the API?
Getting started with OpenSRS is easy. You can sign up with us or book a demo to learn more.
Are there limits on the number of mailboxes I can provision?
Our email service is robust and ready to scale as your business grows. You can provision as many mailboxes as needed with a maximum of 100GB storage per mailbox.
What protocols does the API support?
The OpenSRS Email API is formatted as JSON data. End-users can connect to their hosted email mailbox servers via IMAP4, IMAP4S, POP3, and POP3S as well as SMTPS and SMTP.
Can I migrate my email to OpenSRS?
Yes, you can. We offer a detailed checklist to guide you through email migration. If you’re migrating over 5,000 mailboxes, we also provide dedicated migration assistance.
What happens if I encounter an issue during integration?
Our support team and comprehensive documentation are here to help. We also provide step-by-step examples to guide you through troubleshooting common integration challenges.


