Domain Search Availability API

Domain Search Availability API

The Domain Search Availability API is a comprehensive tool that allows users to check the availability of domain names. With this API, users can validate domain availability, retrieve expiration dates, obtain pricing information, access WHOIS data, and explore various quality aspects of the domain. It provides a wide range of data to assist users in making informed decisions about domain registration and management.

About the API: 


The Domain Search Availability API is a robust and comprehensive tool that empowers users to search for domain names and retrieve essential information about their availability and various related aspects. With this API, users can easily check the availability of domain names, validate their suitability, obtain expiration dates, access pricing information, and explore additional quality aspects to make informed decisions.

One of the primary functionalities of the API is domain availability checking. Users can input a desired domain name and receive immediate feedback on its availability for registration. This feature saves time and effort by eliminating the need for manual checks or visiting individual domain registrar websites.

In addition to availability, the API offers domain validation capabilities. It helps users ensure that the domain name conforms to the required format and meets specific criteria. This ensures that the chosen domain name is valid and compatible with domain registration guidelines.

The API also provides information about domain expiration dates, enabling users to monitor and manage domain renewals effectively. By accessing expiration dates through the API, users can stay proactive and prevent unintended domain lapses, ensuring their online presence remains uninterrupted.

Furthermore, the Domain Search Availability API supplies pricing data for domain names. Users can retrieve information about the cost of registration or renewal, facilitating budgeting and cost analysis for domain-related activities.

An important aspect of the API is the ability to access WHOIS data. WHOIS data provides valuable information about domain ownership, registration details, and administrative contacts. By retrieving this data through the API, users can gain insights into the background and history of a domain, aiding in decision-making processes.

The API goes beyond basic domain availability and provides additional quality aspects for users to consider. This includes advantages and considerations associated with specific domain names, such as SEO relevance, industry suitability, branding potential, or legal implications. These quality aspects help users make informed choices when selecting a domain name for their websites or online ventures.

Overall, the Domain Search Availability API offers a comprehensive suite of features to facilitate domain name searches and provide valuable data for decision-making. Whether users are looking to register a new domain, manage existing domains, or analyze domain-related aspects, this API provides the necessary tools and information to streamline the process and make well-informed choices.


What this API receives and what your API provides (input/output)?

Pass the domain of your choice and check if it's available or not. 



What are the most common uses cases of this API?

  1. Domain Name Registration: The API enables users to search for domain names and check their availability in real-time. This use case is particularly valuable for individuals or businesses looking to register new domain names for their websites or online ventures. Users can easily search for desired domain names and receive instant feedback on their availability, allowing them to secure the perfect domain for their needs.

  2. Domain Portfolio Management: For users who already own multiple domain names, the API can be used to streamline domain portfolio management. By retrieving expiration dates and other relevant information, users can effectively track and manage their domain assets. They can set reminders for domain renewals, identify expiring domains that need attention, and ensure the smooth operation of their online properties.

  3. Domain Reselling and Marketplace Platforms: The API can be integrated into domain reselling platforms or online marketplaces. Resellers can leverage the API to check the availability and quality aspects of domain names listed for sale. By providing real-time domain availability and related information, the API enhances the efficiency and accuracy of domain transactions, facilitating smoother buying and selling experiences.

  4. Brand Monitoring and Protection: The API can assist in brand monitoring and protection strategies. Companies can regularly search for domain names similar to their brand or trademarks to ensure they are not being misused or registered by unauthorized parties. By monitoring domain availability and retrieving relevant data, companies can proactively take action to protect their brand identity and reputation.

  5. Domain Research and Analysis: Researchers, marketers, and SEO professionals can use the API for domain research and analysis purposes. They can search for specific domain names, access WHOIS data, and retrieve quality aspects to evaluate the suitability and potential advantages of different domains. This enables them to make informed decisions regarding domain acquisitions, link-building strategies, competitor analysis, or market research in the online domain space.


Are there any limitations to your plans?

Besides the number of API calls, there is no other limitation

API Documentation


Check domain availability, including domain validation, expiration, prices, domain quality aspects (advantages / considerations) and more data.



Search domain - Endpoint Features
Object Description
domain [Required] Domain for which to get availability info.
Test Endpoint


                                                                                                                                                                                                                            {"status":"OK","request_id":"525932dd-71e7-492a-9ece-541d634652e3","parameters":{"domain":"","currency":"USD"},"data":{"domain":"","sld":"example-domain-123","tld":"com","valid":true,"available":true,"register_price":"0","purchase_price":"0","transfer_price":"12","renew_price":"12","currency":"USD","is_premium":false,"is_aftermarket":false,"whois_privacy_offered":true,"domain_positives":["All time worldwide popular tld","Correct spelling","Okay transcribability"],"domain_negatives":["Long length"]}}

Search domain - CODE SNIPPETS

curl --location --request GET '' --header 'Authorization: Bearer YOUR_API_KEY' 


API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Domain Search Availability API REST API, simply include your bearer token in the Authorization header.


Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

Simple Transparent Pricing

No long term commitments. One click upgrade/downgrade or cancellation. No questions asked.

🚀 Enterprise
Starts at
$ 10,000/Year

  • Custom Volume
  • Dedicated account manager
  • Service-level agreement (SLA)

Customer favorite features

  • ✔︎ Only Pay for Successful Requests
  • ✔︎ Free 7-Day Trial
  • ✔︎ Multi-Language Support
  • ✔︎ One API Key, All APIs.
  • ✔︎ Intuitive Dashboard
  • ✔︎ Comprehensive Error Handling
  • ✔︎ Developer-Friendly Docs
  • ✔︎ Postman Integration
  • ✔︎ Secure HTTPS Connections
  • ✔︎ Reliable Uptime

The Domain Search Availability API is a tool that allows users to check the availability of domain names in real-time. It provides information on whether a specific domain name is currently available for registration or already taken.

The API interacts with domain registrar databases to check the availability status of domain names. It retrieves up-to-date information on whether a domain is available for registration or if it has already been registered by someone else.

Yes, the API supports various TLDs. You can specify the desired TLDs in your API request to check the availability of domain names within those specific TLDs. This allows for targeted searches based on specific domain extensions.

Yes, the Domain Search Availability API can be integrated into your website or application to provide real-time domain availability checks for your users. This allows visitors to check the availability of domain names directly on your website.

The API primarily focuses on checking the availability of domain names for registration. However, some API providers may offer additional services or extensions that allow for searching and monitoring expired domains. It is recommended to check the API documentation for specific features related to expired domains.

Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.

Prices are listed in USD (United States Dollar), EUR (Euro), CAD (Canadian Dollar), AUD (Australian Dollar), and GBP (British Pound). We accept all major debit and credit cards. Our payment system uses the latest security technology and is powered by Stripe, one of the world’s most reliable payment companies. If you have any trouble paying by card, just contact us at [email protected]

Additionally, if you already have an active subscription in any of these currencies (USD, EUR, CAD, AUD, GBP), that currency will remain for subsequent subscriptions. You can change the currency at any time as long as you don't have any active subscriptions.

The local currency shown on the pricing page is based on the country of your IP address and is provided for reference only. The actual prices are in USD (United States Dollar). When you make a payment, the charge will appear on your card statement in USD, even if you see the equivalent amount in your local currency on our website. This means you cannot pay directly with your local currency.

Occasionally, a bank may decline the charge due to its fraud protection settings. We suggest reaching out to your bank initially to check if they are blocking our charges. Also, you can access the Billing Portal and change the card associated to make the payment. If these does not work and you need further assistance, please contact our team at [email protected]

Prices are determined by a recurring monthly or yearly subscription, depending on the chosen plan.

API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.

Zyla API Hub works on a recurring monthly subscription system. Your billing cycle will start the day you purchase one of the paid plans, and it will renew the same day of the next month. So be aware to cancel your subscription beforehand if you want to avoid future charges.

To upgrade your current subscription plan, simply go to the pricing page of the API and select the plan you want to upgrade to. The upgrade will be instant, allowing you to immediately enjoy the features of the new plan. Please note that any remaining calls from your previous plan will not be carried over to the new plan, so be aware of this when upgrading. You will be charged the full amount of the new plan.

To check how many API calls you have left for the current month, look at the ‘X-Zyla-API-Calls-Monthly-Remaining’ header. For example, if your plan allows 1000 requests per month and you've used 100, this header will show 900.

To see the maximum number of API requests your plan allows, check the ‘X-Zyla-RateLimit-Limit’ header. For instance, if your plan includes 1000 requests per month, this header will display 1000.

The ‘X-Zyla-RateLimit-Reset’ header shows the number of seconds until your rate limit resets. This tells you when your request count will start fresh. For example, if it displays 3600, it means 3600 seconds are left until the limit resets.

Yes, you can cancel your plan anytime by going to your account and selecting the cancellation option on the Billing page. Please note that upgrades, downgrades, and cancellations take effect immediately. Additionally, upon cancellation, you will no longer have access to the service, even if you have remaining calls left in your quota.

You can contact us through our chat channel to receive immediate assistance. We are always online from 8 am to 5 pm (EST). If you reach us after that time, we will get back to you as soon as possible. Additionally, you can contact us via email at [email protected]

To let you experience our APIs without any commitment, we offer a 7-day free trial that allows you to make API calls at no cost during this period. Please note that you can only use this trial once, so make sure to use it with the API that interests you the most. Most of our APIs provide a free trial, but some may not support it.

After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it’s important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.

When you subscribe to an API trial, you can make only 25% of the calls allowed by that plan. For example, if the API plan offers 1000 calls, you can make only 250 during the trial. To access the full number of calls offered by the plan, you will need to subscribe to the full plan.

 Service Level
 Response Time


Related APIs