Web JS API Reference

Last updated: February 21, 2026

This reference covers documented public API methods for web integrations.

1. Show CMP UI

window.showCMPBanner(force?)

Purpose:

opens/reopens the CMP UI

Parameters:

force (boolean, optional): when true, reopens UI even if prior consent exists

Example:

2. TCF API

window.__tcfapi(command, version, callback, parameter?)

Purpose:

standard IAB TCF API endpoint exposed by the CMP runtime

Common supported commands:

ping

getTCData

addEventListener

removeEventListener

displayConsentUi

Example:

3. GPP API

window.__gpp(command, callback, parameter?, version?)

Purpose:

standard IAB GPP API endpoint exposed by the CMP runtime

Common supported commands:

ping

addEventListener

removeEventListener

getGPPData

4. Debug Helper

window.nxgDebugConsent(showUI?)

Purpose:

runs runtime diagnostics for Consent Mode ordering and TCF availability

Parameters:

showUI (boolean, optional): when true, opens debug overlay UI

Examples:

5. Notes

API availability depends on successful loader initialization.

Keep custom calls behind existence checks in production.

Consent action internals are handled by CMP UI and are not exposed as public web JS methods.

Recommended guard:

Web JS API Reference

1. Show CMP UI#

2. TCF API#

3. GPP API#

4. Debug Helper#

5. Notes#

1. Show CMP UI

2. TCF API

3. GPP API

4. Debug Helper

5. Notes