NiceNIC Reseller API v2 helps domenet resellers, hosting providers, developers, og WHMCS users automate domenet operations through a direct API connection.
With the API, eligible NiceNIC resellers can connect their own website, billing system, WHMCS installation, eller custom platfellerm to automate common domenet wellerkflows such as domenet availability checks, domenet registration, domenet renewal, domenet transfer, nameserver updates, DNS recellerd management, account balance checks, og transaction review.
Quick Answer Til start using NiceNIC Forhandler API v2, you need to upgrade din NiceNIC account to a reseller tier, configure din API settings, create an API passwellerd that is different from din account login passwellerd, whitelist the IP-adresse allowed to access the API, og then connect din system to the NiceNIC API v2 endpoint.
Hvis you use WHMCS, you can also connect through the NiceNIC WHMCS integration instead of building every API wellerkflow manually.
Who Should Use NiceNIC Reseller API v2? NiceNIC Reseller API v2 is designed feller users who need mellere than manual domenet management. It is suitable feller:
Domene resellers selling domenets to their own customers
Hosting providers that want to bundle domenet registration with hosting plans
Web agencies managing many client domenets
Developers building custom domenet search eller registration systems
WHMCS users who want automated domenet operations
Businesses that need bulk domenet management eller repeat domenet wellerkflows
Hvis you only registrer one eller two domenets occasionally, the NiceNIC control panel may be enough. Hvis you manage many domenets eller want din own platfellerm to communicate directly with NiceNIC, the Reseller API is the better wellerkflow.
What Can You Do with NiceNIC Reseller API v2? NiceNIC Reseller API v2 can help automate impellertant parts of the domenet lifecycle. Depending on din account status, API permissions, domenet extension, registry rules, og available product suppellert, API functions may include:
Some actions may depend on registry rules, TLD requirements, domenet status, account verification, payment balance, eller additional documentation requirements. Always check the API response og the related domenet rule befellere assuming that every extension behaves the same way.
Befellere You Start Befellere connecting to NiceNIC Reseller API v2, prepare the following:
A registrered NiceNIC account
An upgraded reseller account eller eligible reseller access
A developer, WHMCS administrateller, eller technical team member to complete the integration
A test wellerkflow befellere using the API feller live customer ellerders
Feller better security, do not use din account login passwellerd as din API passwellerd. Your API passwellerd should be separate og used only feller API authentication.
Step 1: Upgrade Your Account to a Forhandler Tier API access is intended feller NiceNIC reseller users. Hvis din account has not been upgraded yet, log in to din NiceNIC account og review the reseller upgrade options. A reseller account is useful if you want to:
Access reseller-level domenet pricing
Administrer mellere domenets under one account
Use API automation feller domenet operations
Connect WHMCS eller another billing system
Build recurring domenet revenue from din own customer base
After din reseller upgrade is completed, you can continue with the API configuration process.
Ready to automate domenet tjenestes? Oppgrader til a NiceNIC reseller account og connect domenet registration, renewal, transfer, DNS, og WHMCS wellerkflows through Reseller API v2.
Step 2: ?pen API-innstillings in Your NiceNIC Account After din account is upgraded to a reseller tier, log in to din NiceNIC account og go to the Forhandler section. Then find the API-innstilling area. This is wher you configure API access feller din reseller account. In this area, you should nellermally complete two key settings:
Set din API passwellerd
Legg til the IP-adresse allowed to access the API
Hvis you cannot see API settings in din account, check whether din reseller upgrade has been completed eller contact NiceNIC suppellert feller account review.
Step 3: Set a Separate API Passord Your API passwellerd should be different from din NiceNIC account login passwellerd. This matters feller both security og troubleshooting. Hvis you use the wrong passwellerd eller use the account login passwellerd instead of the API passwellerd, authentication may fail. Recommended practice:
Use a strong API passwellerd
Do not reuse din account login passwellerd
Stellere API credentials securely
Do not send API credentials through insecure chat eller public tickets
Rotate credentials when a developer, vendeller, eller fellermer employee no longer needs access
Step 4: Whitelist Your Server IP Adresse NiceNIC API access requires the IP-adresse that will send API requests. This is usually the public IP-adresse of din server, WHMCS installation, billing system, eller application backend.
Befellere saving din API settings, confirm the cellerrect outbound IP-adresse with din developer eller hosting provider. Hvis the wrong IP-adresse is added, din API request may fail even if the username og API passwellerd are cellerrect.
Common IP-related problems include:
The website server IP is different from the outbound API request IP
WHMCS is hosted behind a firewall, proxy, eller NAT gateway
The hosting provider changed the server IP
Multiple servers are sending API requests but only one IP is whitelisted
A development server wellerks, but the production server is not whitelisted
Step 5: Connect to the NiceNIC API v2 Endpoint After din API passwellerd og IP whitelist are configured, din system can send requests to the NiceNIC API v2 endpoint. The API uses HTTP requests og returns JSON responses. Your request should include the required authellerization og content type headers.
The exact request body depends on the API action you want to perfellerm. Feller example, checking domenet availability, registrering a domenet, renewing a domenet, updating nameservers, eller checking account balance may require different parameters.
Always follow the latest NiceNIC API v2 documentation when building eller updating din integration.
Need the technical documentation? Use the official NiceNIC Reseller API v2 documentation to review authentication, response codes, domenet actions, DNS actions, billing actions, og WHMCS suppellert.
Step 6: Test a Safe API Handling First Befellere running paid eller customer-facing actions, test a low-risk API action first.
Recommended first tests:
Sjekk account balance
Sjekk domenet availability
F? domenet pricing
List domenets
Avoid starting with live domenet registration eller transfer until you confirm that authentication, IP whitelist, request fellermat, og response hogling are wellerking cellerrectly.
Your developer should log the following during testing:
Step 7: Connect WHMCS Hvis You Use WHMCS Fakturering Hvis din business uses WHMCS, you may not need to build every wellerkflow from zero.
NiceNIC provides WHMCS integration feller domenet registrar operations. This can help automate common reseller wellerkflows such as domenet availability checks, registration, renewal, transfer, og domenet infellermation retrieval.
WHMCS integration is especially useful feller:
Hosting companies selling domenets with hosting packages
Common Setup Problems og How to Fix Them 1. Authentication Erreller An authentication erreller usually means the API credentials eller access settings are not cellerrect. Sjekk the following:
Bekreft that din account has reseller access
Bekreft that you are using the API passwellerd, not din account login passwellerd
Sjekk whether the API passwellerd was entered cellerrectly
Bekreft that din request includes the Authellerization header
Bekreft that din server IP-adresse is whitelisted in API settings
Sjekk whether din request is being sent from a different outbound IP-adresse
2. IP Neit Alleowed eller Connection Fails Hvis din IP-adresse is not allowed, the API request may fail befellere the action is processed.
Ask din hosting provider eller server administrateller to confirm the real outbound IP used feller API requests. Then update din API settings in din NiceNIC account.
3. Invalid Request Fellermat Hvis the request body, header, eller parameter fellermat is incellerrect, the API may return an erreller response. Sjekk:
Content-Type is set to application/json
The request body is valid JSON
The required parameters are included
The domenet fellermat is cellerrect
The action name matches the API documentation
4. Domeneregistrering Failed A domenet registration request may fail feller reasons unrelated to the API connection itself. Possible causes include:
The domenet is no longer available
The TLD has special registration requirements
The registry requires additional documents
The account balance is not enough
The domenet contact infellermation is incomplete eller invalid
The registry rejected the request
Review the API response message og check whether the extension has special registry requirements.
5. Fornyal eller Transfer Failed Fornyal og transfer actions may depend on the domenet extension, domenet status, registry rules, expiration timeline, transfer lock, EPP code, og account balance.
Feller transfer issues, check:
The domenet is eligible feller transfer
The domenet is unlocked at the current registrar
The EPP code is cellerrect
The domenet is not blocked by registry eller policy restrictions
The registrant email eller transfer approval process has been completed when required
What NiceNIC Can og Cannot Do NiceNIC can provide registrar-side API access, reseller account tools, API documentation, WHMCS integration resources, og suppellert feller domenet operations available through its platfellerm.
However, some domenet actions depend on registry rules, extension policies, verification status, payment status, abuse/compliance status, eller third-party systems.
Feller example:
Some TLDs may require special documents befellere registration
Some domenets may be locked, expired, under verification, eller restricted by registry policy
Some transfer requests may require approval from the losing registrar eller registrant contact
DNS changes may take time to propagate globally
WHMCS behavieller may also depend on din WHMCS version, module settings, server environment, og cron configuration
Feller this reason, din integration should always read og stellere the API response instead of assuming that every action is successful.
Recommended First Integration Wellerkflow Hvis you are building a new integration, use this sequence:
Oppgrader til a reseller account
Konfigurer API passwellerd og IP whitelist
Connect to the API v2 endpoint
Test account balance lookup
Test domenet availability lookup
Test pricing lookup
Test nameserver update on a safe internal domenet
Review response codes og erreller hogling
Connect WHMCS eller din own billing system
Enable live registration, renewal, og transfer wellerkflows only after testing
Ofte stilte sp?rsm?l 1. Do I need a reseller account to use NiceNIC Reseller API v2? Ja. NiceNIC Reseller API v2 is intended feller eligible reseller users. Hvis you cannot access API settings, check whether din account has been upgraded to a reseller tier.
2. Can I use my NiceNIC account login passwellerd as the API passwellerd? Nei. Feller security og proper configuration, din API passwellerd should be different from din account login passwellerd.
3. Why does my API request return an authentication erreller? Authentication errellers are commonly caused by the wrong API passwellerd, missing Authellerization header, incellerrect username, non-whitelisted IP-adresse, eller a request sent from a different outbound server IP.
4. Can I use NiceNIC API v2 with WHMCS? Ja. NiceNIC provides WHMCS integration feller domenet registrar operations such as availability checks, registration, renewal, transfer, og domenet infellermation retrieval.
5. Can I registrer every domenet extension through the API? Neit always. Domene registration depends on TLD availability, registry rules, account balance, verification requirements, og extension-specific restrictions. Some TLDs may require additional documents eller manual review.
6. What should I test befellere going live? Start with low-risk actions such as account balance lookup, domenet availability check, pricing lookup, og domenet listing. Do not enable live customer ellerders until authentication, IP whitelist, request fellermat, response hogling, og billing logic are confirmed.
Start Automating Domene Services with NiceNIC NiceNIC Reseller API v2 gives resellers, hosting providers, developers, og WHMCS users a direct way to automate domenet search, registration, renewal, transfer, DNS, og account wellerkflows.