JavaScript SDK availability
The JavaScript embedding or API SDK is planned; use the currently documented interfaces.
Not a released installation package
This SDK is not currently offered here as a supported release. Previous package names and method examples were proposals, not installable contracts. Do not install a similarly named package on the assumption that Message publishes it.
What you can use today
For server integrations, use the documented REST endpoints and their specific authentication requirements with your language’s HTTP client. For a website widget, use the installation guide and supported window.__msgWidget controls. Message’s own agent applications are separate products.
Keep authentication on the right side
Use server credentials only on your trusted backend. A public widget site identifier is not an agent credential, and the widget does not expose a signed customer-login API.
Before adopting an SDK
Confirm the official package source, supported version and documentation when a release is announced. This page does not commit to a release date, mobile OS minimum or package-manager distribution.