---
sourceDocument: Xanadu API Reference
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/api-reference

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu API Reference

ft:clusterId :

    - crapiref

bundleId :

    - crapiref

workflow :

    - Creator


---

# API reference

# API reference {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read

Use ServiceNow APIs to change functionalities and add features on
the ServiceNow AI Platform.

|-|-|-|-|-|-|
| [Client Control how the ServiceNow AI Platform functions and is displayed within the web browser.](https://servicenow-prod.fluidtopics.net/ztInx7yKL97sbdJUTkiMqw "Use client-side JavaScript APIs to control aspects of how ServiceNow AI Platform is displayed and functions within the web browser. This reference lists available classes and methods along with parameters, descriptions, and examples to help control the end-user experience.") | [Client mobile Build custom mobile experiences inside of ServiceNow AI Platform native mobile apps.](https://servicenow-prod.fluidtopics.net/LpQbT76U2HVx3o~qOPoCBA "Use Cabrillo JS to build custom mobile experiences inside of ServiceNow AI Platform native mobile apps.") | [UI Builder Build client scripts in UI Builder.](https://servicenow-prod.fluidtopics.net/hGx9~HwqUbkvQwyxL35Wag "Use UI Builder (UIB) APIs in UIB client applications.") | [Server Build and update applications.](https://servicenow-prod.fluidtopics.net/9SRKXTcZ3xfi_PnANtp3DQ "Use server APIs in scripts to change the functionality of applications, or when you create new applications.") | [REST Access and update data.](https://servicenow-prod.fluidtopics.net/enjkhEuAw9paPBNoW_8S3Q "Use REST interfaces to access data on your instance.") | [Browse APIs by product Find APIs to use with your ServiceNow products.](https://servicenow-prod.fluidtopics.net/0M7B8Wk1Mut9FEFlSh3VcQ "Find APIs to use with your ServiceNow products.") |
[ ]

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## Client {#api-reference__section_ynk_qy4_vvb}

Use client-side JavaScript APIs to control how the ServiceNow AI Platform functions and displays within the web browser. Client-side APIs provide common functionality that you can add to your instance by calling the APIs from client-side scripts such as client scripts and UI
policy scripts.  
Common use cases:

* Use the [GlideAjax](https://servicenow-prod.fluidtopics.net/9y18iKKIcWAq_NDuR_8fzQ#c_GlideAjaxAPI "The GlideAjax class enables a client script to call server-side code in a script include.") API to call server-side code from a client script.
* Use the [GlideForm](https://servicenow-prod.fluidtopics.net/D~Jz7pWgGiVdAfIZ~ZFj8Q#c_GlideFormAPI "The GlideForm API provides methods to customize forms.") API to customize forms.
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## Client mobile {#api-reference__section_ug3_ckz_5wb}

Cabrillo JS is a client-side JavaScript API for accessing capabilities inside ServiceNow AI Platform native mobile applications. Cabrillo JS provides methods to use native device capabilities, native mobile UI, and other ServiceNow AI Platform mobile functionality.

## UI Builder {#api-reference__section_g1j_4tj_dxb}

Use UI Builder APIs when developing client scripts in the [UI Builder](https://www.servicenow.com/docs/access?context=ui-builder-overview&version=xanadu&pubname=xanadu-application-development&ft:locale=en-US). Client scripts are executed in response to something happening on a page, such as:

* User interaction events/actions, such as a button click.
* Lifecycle events, such as a data broker execution started.

## Server {#api-reference__section_zz5_qy4_vvb}

Use server-side JavaScript APIs to change the functionality of existing applications or to
build new applications. Server-side APIs provide common functionality that you can add to
your instance by calling the APIs from server-side scripts such as business rules and script
includes. Scoped APIs are intended for use with scoped applications, and global APIs are
intended for use with applications in the global scope. New applications are typically
scoped. Applications in the global scope are typically legacy applications.  
Common use cases:

* Use the [GlideRecord](https://servicenow-prod.fluidtopics.net/Z64TK~kWnpWTEG5bCPvZuQ#c_GlideRecordScopedAPI "The scoped GlideRecord API is used for database operations.") or [GlideQuery](https://servicenow-prod.fluidtopics.net/~2Jq6rIldO_mBTaQjYIzsQ#GlideQueryGlobalAPI "The GlideQuery script include is an alternative to the GlideRecord API for performing CRUD operations on record data from server-side scripts.") APIs to perform create, read, update, and delete operations on record data from server-side scripts.
* Use the [GlideSystem](https://servicenow-prod.fluidtopics.net/3Hp1FQjMKidd9ATK9vFJrA#c_GlideSystemScopedAPI "The scoped GlideSystem API provides a number of convenient methods to obtain information about the system, the current logged in user, and other system level information.") API to access information about the instance or the current user session and to write informational or error messages.
* Use [FlowAPI](https://servicenow-prod.fluidtopics.net/oW~16xYu7YXh0S2TGiCBRw#ScriptableFlowAPI "The FlowAPI provides methods to execute actions, flows, or subflows in server-side scripts using either blocking or non-blocking methods.") methods to trigger flows, subflows, and actions from server-side scripts.
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## REST {#api-reference__section_ifh_ry4_vvb}

Use REST APIs to access and update data on the ServiceNow AI Platform. You can discover
these APIs from within your instance by using the REST API Explorer. If you don't find an
API that meets your needs, you can create custom REST APIs using the Scripted REST API
feature. ServiceNow REST APIs support Basic Authentication and OAuth
2.0 to authenticate requests.  
Common use cases:

* Use the [Attachment API](https://servicenow-prod.fluidtopics.net/6cG37dgmR1vwJCbI7a6lCg#c_AttachmentAPI "The Attachment API provides endpoints that allow you to upload and query file attachments.") to upload and query file attachments.
* Use the [Email
  API](https://servicenow-prod.fluidtopics.net/GjTmazORabZX7n9q7YsSyQ#email-api "The Email API provides endpoints that enable you to receive and send email messages using REST.") to send and receive email messages.
* Use the [Table
  API](https://servicenow-prod.fluidtopics.net/1Gay5St9NtFuJYW7wnnCrg#c_TableAPI "The Table API provides endpoints that allow you to perform create, read, update, and delete (CRUD) operations on existing tables.") to create, read, update, and delete records in a table.
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