Developer portalREST API

Build domain experiences. Own the customer journey.One simple API.

Search, register, renew and transfer, all white-label under your brand, through one clean REST API.

Create a demo account View documentation
Already have a demo account? Sign in to your demo panel
GET /rclub/domains/available POST /rclub/customers POST /rclub/contacts
POST/rclub/domains
# Register a domain in one call
POST /rclub/domains
x-user-id: YOUR_X_USER_ID
x-api-key: YOUR_X_API_KEY
{ "domainName": "acme-studio.com",
"years": 1, "customerId": "…", "regContactId": "…" }
200 OK
"orderId": "…"
"status": "…"
"message": "…"
Beyond domains? Hosting, email, SSL and other add-ons stay on the legacy HTTP API for now. View legacy docs
20+ years
of domain expertise on the OrderBox platform behind ResellerClub.
18M
Domains under management.
500+
TLDs available through the API. Legacy, country-code and new extensions.
100,000+
Partners build on the platform worldwide.
Who builds on it

Trusted by the platforms your customers already use.

ResellerClub has been an outstanding partner to Readdy, consistently providing reliable services and excellent support. We truly value the trust and confidence they have earned from our team. We look forward to deepening our partnership and working together to help even more Readdy customers achieve success.
Readdy.ai
Readdy.ai
Resellerclub has been a reliable technology partner for our domain business. Their APIs are robust, and the support provided by our Technical Account Manager has been exceptional. From onboarding to troubleshooting and ongoing guidance, the team has consistently delivered timely and effective assistance.
DotPe
We run tens of thousands of domains for clients on this platform. The new REST API means our juniors can work with it too.
MP
[Name]
Founder, [Web agency]
Coverage

The whole domain lifecycle, one surface.

Every endpoint your domain business needs.

Domain lifecycle: a track runs left to right through four stages - an availability check, registration, management showing nameserver rows and a contact card, and renewal - with the domain yourbrand.store and a privacy padlock on the track between registration and management. A return arc curves back underneath from renewal to the start.
Domains Contacts Customers Orders Billing DNS Domain Forward Actions Products Resellers Country
What you get

Built the way you already build.

If you have integrated a modern REST API before, you already know this one. Clean JSON in and out, predictable resource paths, and documentation you can test against before writing a line of code.

One clean REST API

Predictable JSON resources with camelCase fields, described by an OpenAPI spec. Explore every endpoint, generate clients, import into your tools.

Header authentication

Authorize with your reseller id and API key sent as request headers. No credentials in your URLs, and none in your logs.

A separate demo environment

A demo account with its own credentials and API key, working only against the demo API. No live funds, no side effects, no surprises in production.

SDKs and Postman

First-party SDKs and a maintained Postman collection, generated from the spec so they never drift from the API.

Quickstart

Your first call in five minutes.

  1. 1Create a demo account, grab your demo API key from your panel, and check a domain's availability.
  2. 2Create a customer and a contact. Registration hangs off both.
  3. 3Register the domain, then poll its action status until it completes.
Read the quickstart
terminal curl 
$ curl -X GET "https://rclub-api.jarvisqa1k8s01.preprodapps.registeredsite.com\
/rclub/domains/available?domainName=mybrand-test-12345" \
    -H "x-user-id: YOUR_X_USER_ID" \
    -H "x-api-key: YOUR_X_API_KEY" \
    -H "Accept: application/json"
On the roadmap Signed webhooks, idempotency keys and MCP support for AI agents are planned for a later phase. Follow the documentation for what ships next.

Moving a large portfolio?

Whether you are migrating from the legacy API or bringing domains over from another provider, our team will help you plan the move: endpoint mapping, transfer runway and testing.

Contact Us
Get started

Start building today.

Create a demo account, make your first call against the demo API, and put domains in your product this week.

Create a demo account Become a reseller