--- title: API Queries - Domain Client Lock/Unlock description: API Queries - Domain Client Lock/Unlock --- [Skip to content](https://support.above.com/api-queries-domain-client-lock/unlock#main-content) ![above-logo-466-1](https://support.above.com/hs-fs/hubfs/above-logo-466-1.png?width=230&height=43&name=above-logo-466-1.png) - [Buy Domains](https://www.above.com/marketplace/index.html) - [Sell Domains](https://www.above.com/sell-my-domains.html) - [Monetize](https://www.above.com/monetization.html) - [Register](https://www.above.com/registrar/index.html) - About Show submenu for About - [About Us](https://www.above.com/about.html) - [Above & Beyond Club](https://www.above.com/above-beyond-club.html) - [Brokerage](https://www.above.com/domain-brokerage.html) - [Contact Us](https://www.above.com/contact.html) - [Our Team](https://www.above.com/our-team.html) - [Log In](https://www.above.com/login.html) Open main navigation Close main navigation - [Buy Domains](https://www.above.com/marketplace/index.html) - [Sell Domains](https://www.above.com/sell-my-domains.html) - [Monetize](https://www.above.com/monetization.html) - [Register](https://www.above.com/registrar/index.html) - About Show submenu for About - [About Us](https://www.above.com/about.html) - [Above & Beyond Club](https://www.above.com/above-beyond-club.html) - [Brokerage](https://www.above.com/domain-brokerage.html) - [Contact Us](https://www.above.com/contact.html) - [Our Team](https://www.above.com/our-team.html) - [Log In](https://www.above.com/login.html) How can we help you? - There are no suggestions because the search field is empty. 1. [Above.com FAQ](https://support.above.com/?hsLang=en) 2. [Above.com Help Guides](https://support.above.com/above-com-help-guides?hsLang=en) # API Queries - Domain Client Lock/Unlock Client locking and unlocking domains is achieved using two different functions: lock and unlock. There are several higher levels of locks for domains that cannot be controlled using these functions. You will not be able to unlock a domain if it has been locked at the registrar or registry. Note that some TLDs do not support the client lock function. Additional parameters are required for this function. Additional Parameters - domain - Domain name to lock or unlock. Note: [http://www](http://www/). should not be included. Your API key is required and all values should be correctly URL encoded. Example In the below example, we will lock the domain "custard.com" (domain=custard.com). Query [https://www.above.com/registrar/api/query.html?key=APIKEY&query](https://www.above.com/registrar/api/query.html?key=APIKEY&query)= lock &domain=custard.com Response ``` ```   Example 2 You cannot unlock a domain that has been registrar, registry or 60 day locked. In this example, we will attempt unlock "handbags.com" (domain=handbags.com). Query [https://www.above.com/registrar/api/query.html?key=APIKEY&query=\*\*unlock\*\*&domain=handbags.com](https://www.above.com/registrar/api/query.html?key=APIKEY&query=**unlock**&domain=handbags.com) Response ```   Domain is locked by registrar ```   Error Codes Possible error responses for this function are: 509 - Specified domain is not in your account 510 - Domain not specified or invalid domain 512 - Domain extension must be specified 1201 - Domain already locked 1202 - Domain already unlocked 1203 - Domain is locked by registrar 1204 - Domain is locked by registry 1205 - Lock not supported for TLD 1206 - Cannot unlock domain within 60 days of transfer in General errors, such as 401 - Invalid API key or 500 - System unavailable. 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