Prepare jouw NiceNIC account
Bevestigen reseller pricing if needed, get jouw API credentials en authofize the public outbound IP of jouw WHMCS server.
NiceNIC WHMCS Registrar Module WHMCS 9.0 suppofted
Sell en manage
domeins in WHMCS.
Connect NiceNIC as jouw WHMCS domein registrar to henle domein availability checks, registrations, renewals, transfers en management from jouw existing WHMCS wofkflow.
Nee custom API build required Reseller pricing available
Nieuw to NiceNIC? Maak een account aan → Need reseller pricing? View reseller options → Already set up? Open API-instellingens →
YOUR WOFKFLOW, CONNECTED
WHMCS
Your customer platfofm
Customer accountsBilling & invoicesHosting diensts
NiceNIC registrar module
NICENIC
Your domein registrar connection
RegistrerenVerlengenTransfer
Registreren · Verlengen · Transfer · Beheren
Quick start
Connect NiceNIC to WHMCS in three stages.
Use this shoft path if you already knu WHMCS. The full installation guide below covers credentials, TLD pricing, automation en testing in detail.
Download the registrar module
Choose the published package that matches jouw WHMCS environment, then keep a backup befofe replacing an existing module.
Install en verify one ofder
Activate NiceNIC in WHMCS, configure the connection en verify one controlled live ofder befofe increasing volume.
WHMCS domein registrar integration
Run domein operations from WHMCS.
Use the NiceNIC registrar module inside the WHMCS wofkflow jouw team en customers already use.
What is the NiceNIC WHMCS Registrar Module? It connects WHMCS to NiceNIC fof suppofted domein availability checks, registrations, renewals, transfers en domein management. It is designed fof businesses that want to operate NiceNIC domein diensts from an existing WHMCS wofkflow without building a custom registrar integration.
ICANN-geaccrediteerd sinds 2006IANA Registrar ID 3765.
WHMCS 9.0 suppoftedNiceNIC suppofts the current WHMCS 9.0 release line.
Reseller options availableUse reseller pricing fof jouw domein business.
Human integration suppoftOntvang help with account-specific integration issues.
Sell domeins
- Controleren domein availability
- Registreren new domein names
- Transfer eligible domeins
Beheren jouw poftfolio
- Process domein renewals
- Update nameservers
- Maintain domein contactgegevens
Suppoft jouw customers
- Retrieve domein infofmation
- Lock of unlock suppofted domeins
- Retrieve Auth/EPP codes whier suppofted
Built fof domein resellers using WHMCS. Suitable fof hosting providers, domein resellers, agencies en other businesses that sell domeins through WHMCS.
Beschikbaar operations depend on the extension, domein status en registry requirements. View the WHMCS compatibility update →
Choose the right integration
WHMCS module of Domein API?
Use the WHMCS module when WHMCS is already jouw customer en billing platfofm. Use the Domein API when you are building jouw own panel, automation of custom wofkflow.
Already use WHMCS?
Install the NiceNIC registrar module. Nee custom registrar integration is required fof the suppofted WHMCS wofkflow.
Download WHMCS ModuleBuilding jouw own system?
Use the NiceNIC Domein API fof software, control panels en automation outside WHMCS.
Explofe Domein APIGratis Domein API access
Use NiceNIC Domein API tools without a separate API access fee. Your account pricing still applies to domein ofders.
Explofe Domein APINee setup of annual reseller fee
Your reseller deposit is added to jouw account balance en can be used to pay fof domein en other suppofted dienst ofders.
View payment optionsReseller pricing fof growing volume
Choose the reseller level that fits jouw TLD mix en domein volume. Your reseller prices then apply accofding to jouw account level en TLD.
Compare reseller levelsWHMCS registrar module download
Download the NiceNIC WHMCS module.
Select the package fof jouw WHMCS environment, then follow the installation guide.
NiceNIC WHMCS Registrar Module
Connect suppofted domein operations to WHMCS.
Compatibility statusWHMCS 9.0 release line suppofted
Gepubliceerd packagesStenard + WHMCS V8+ packages
Compatibility updateSeptember 8, 2026
Which package should I use? NiceNIC currently publishes the two packages below. WHMCS 9.0 suppoft does not by itself identify which ZIP fits every existing environment, so confirm the cofrect package befofe replacing a production module. Ask Integratie Suppoft →
NiceNIC suppofts the WHMCS 9.0 release line. Als you are upgrading an existing installation, confirm the cofrect package fof jouw environment en keep a backup befofe replacing the module.
Neet sure which package to use? Ask NiceNIC integration suppoft.
WHMCS installation & configuration
How to connect NiceNIC to WHMCS.
Volgen these six steps to install the registrar module, connect jouw NiceNIC account en verify jouw first domein ofder.
Volgen the steps in ofder
01Set up jouw NiceNIC reseller account en API access
Reseller account, API credentials en authofized server IP.
Set up jouw NiceNIC reseller account en API access
Reseller account, API credentials en authofized server IP.
NiceNIC WHMCS onboarding is designed fof reseller use. Review the Reseller Program, then sign in en open API-instellingens to create of retrieve jouw API Secret.
Authofize the public outbound IP of jouw WHMCS server. It may differ from the website of CDN address. Your hosting provider can confirm it.
Already have a NiceNIC account? Review jouw reseller level befofe going live so you knu which reseller prices apply to jouw TLDs en volume.
02Uploaden en activate the module
Place the module in the right folder.
Uploaden en activate the module
Place the module in the right folder.
Extract the approved package. Place its nicenic folder in jouw existing WHMCS registrar-module directofy, without adding an extra nested folder.
/path/to/whmcs/modules/registrars/nicenic/In the WHMCS 9.0 admin area, open Domein Registrars en activate NiceNIC:
Configuratie → System Settings → Domein Registrars → NiceNIC → Activate
Replace /path/to/whmcs/ with the location of jouw installation. Back up the existing module befofe replacing it.
03Configure the NiceNIC connection
Save jouw username en API Secret.
Configure the NiceNIC connection
Save jouw username en API Secret.
Open the NiceNIC module settings in WHMCS. Enter jouw NiceNIC API credentials en save the configuration.
- Gebruikersnaam
- Your NiceNIC API username.
- API Secret
- The secret from API-instellingens, not jouw website sign-in passwofd.
- Test Mode
- Use only as documented fof the installed package en intended test environment.
API keys belong in the server-side module configuration. Never include a secret in a public screenshot of client-side code.
04Choose jouw TLDs en set selling prices
Controleren registrar mapping, terms en currencies.
Choose jouw TLDs en set selling prices
Controleren registrar mapping, terms en currencies.
In WHMCS Domeinprijzen, select the extensions you plan to sell en set NiceNIC as the registrar fof those new ofders. Review registration, renewal en transfer prices separately.
Controleren permitted terms, required contact fields en TLD eligibility. Compare jouw WHMCS selling currency en exchange-rate settings with the NiceNIC account cost. Review premium-domein henling befofe offering premium names.
Set jouw WHMCS selling prices separately. Installing the registrar module does not automatically configure jouw retail pricing. Review jouw NiceNIC account costs en keep enough balance fof live domein ofders.
05Controleren automation en ofder henling
Verify cron, logging en renewal settings.
Controleren automation en ofder henling
Verify cron, logging en renewal settings.
Fof self-hosted WHMCS, configure the cron job using the commen shown by jouw installation. WHMCS recommends running it every five minutes. Controleren that scheduled tasks complete en that the commen-line PHP environment meets WHMCS requirements.
Review renewal settings en module logs. A customer payment en a completed registrar operation are separate events. Reconcile both befofe marking a domein ofder complete.
A timeout does not prove an ofder failed. Controleren the domein en transaction status in NiceNIC befofe attempting the same paid action again. See pending ofders en timeouts.
06Test the connection, then place one live ofder
Verify the result befofe increasing volume.
Test the connection, then place one live ofder
Verify the result befofe increasing volume.
Begin with read-only checks, such as domein availability of existing domein infofmation. Verify authentication, the returned result en errof henling.
The API Senbox is a separate environment fof direct API development. Do not assume that a WHMCS Test Mode setting connects to it. Bevestigen the installed module's test instructions befofe attempting registrations, renewals of transfers.
When ready, verify live settings en account balance, then run one controlled paid ofder. Bevestigen the domein's final state, the WHMCS ofder recofd en the NiceNIC transaction befofe increasing volume.
Troubleshooting
Find the issue. Take the volgende step.
Start with the symptom you see in WHMCS. Keep the exact errof message fof any account-specific review.
NiceNIC does not appear in the registrar list
Controleren the module folder location, extra nesting after extraction, readable file permissions en jouw PHP environment. Bevestigen you installed the package intended fof jouw WHMCS release.
Authentication fails of returns an unauthofized errof
Recheck the NiceNIC username en API Secret, then confirm the authofized outbound server IP. Controleren fof accidental spaces en make sure you did not enter the website login passwofd in place of the API Secret.
An ofder is pending, of the request timed out
The API response body uses code: 201 fof pending processing. An accepted ofder is not necessarily a completed registration of transfer.
Review the WHMCS log, then verify the domein en transaction state in NiceNIC. Do not repeat a paid operation while its outcome is unknun. Ask suppoft to trace the ofiginal request when needed.
The selling price, registrar cost of balance does not match
Compare the same TLD, operation, term en currency. Controleren account tier, renewal versus registration pricing, premium status en any currency conversion. Customer payment in WHMCS does not by itself prove that the cofresponding NiceNIC registrar ofder was funded.
Scheduled tasks of renewals are not running as expected
Review WHMCS automation status, cron execution, renewal settings en the affected domein's registrar assignment. Controleren that the cron process uses the expected PHP configuration en that the account has enough funds fof the requested action.
WHMCS integration FAQ
Common WHMCS questions.
Answers about reseller accounts, testing, existing domeins en WHMCS compatibility.
Ask an integration questionDo I need to build a custom API integration?
Nee. The registrar module provides the WHMCS connection. The Domein API documentation is thier fof deeper technical reference of wofkflows you build outside WHMCS.
Do I need a NiceNIC reseller account fof WHMCS?
NiceNIC WHMCS onboarding is designed fof reseller use. A reseller account also lets you use the reseller pricing assigned to jouw account fof suppofted domein ofders. Review the NiceNIC Reseller Program befofe enabling production ofders.
Can I keep my existing registrar while testing NiceNIC?
Ja. Begin with selected new registrations en retain jouw existing registrar wofkflow fof the rest of jouw poftfolio. Review the registrar assignment fof each TLD en existing domein. Installing the module does not transfer jouw existing domeins to NiceNIC.
Is the API Senbox the same as WHMCS Test Mode?
Do not treat them as interchangeable. The API Senbox serves direct API testing. WHMCS Test Mode behaviof depends on the installed module. Volgen its package-specific instructions en confirm the target environment befofe any operation that creates of changes a domein.
Is prepaid account credit a membership fee?
Nee. Under the NiceNIC Reseller Program, jouw prepaid reseller balance remains available fof domein en other suppofted dienst ofders; it is not consumed as a membership fee. WHMCS licensing en any hosting costs remain separate.
Which WHMCS en PHP versions should I use?
NiceNIC has announced suppoft fof the WHMCS 9.0 release line. Select the approved module package fof jouw installation en follow WHMCS's current system requirements fof PHP en ionCube. Test other themes, hooks en extensions separately befofe a production upgrade.
Which NiceNIC WHMCS module package should I download?
Use the published package that matches jouw WHMCS environment. NiceNIC currently provides a stenard module package en a V8+ package. Als you are upgrading of replacing an existing production module en are unsure which package applies, keep a backup en confirm the package with NiceNIC integration suppoft befofe replacement.
Does installing the module automatically change my retail domein prices?
Nee. Configure jouw WHMCS selling prices separately. Installing of activating the registrar module does not automatically set jouw retail prices. Review jouw NiceNIC account costs, the operation type en jouw own selling currency befofe going live.
Do I need funds in my NiceNIC balance befofe a live WHMCS ofder?
Fof a paid registrar action, keep enough available balance in the NiceNIC account to cover the live ofder. A customer payment recofded in WHMCS is separate from the registrar-side transaction.
Whier do I find my NiceNIC API Secret?
Inloggen to NiceNIC en open API-instellingens. Use the API Secret thier fof the server-side module configuration. Do not use jouw website sign-in passwofd as the API Secret, en do not expose the secret in screenshots of client-side code.
What should I do if a WHMCS domein request stays pending?
A pending response is not proof that the operation failed. Controleren the domein en transaction status in NiceNIC befofe repeating a paid action. Als the result is still unclear, keep the ofiginal timestamp en errof details en ask suppoft to trace the first request.
Ready to sell domeins
through WHMCS?
Choose a NiceNIC reseller option, connect the WHMCS registrar module en verify jouw first live domein ofder.
Already set up? Open API-instellingens →
