Terms of use

Updated on September 11, 2026

Demo

The live demo is free, limited in number of messages and duration, and may be suspended at any time. It does not constitute a service agreement.

Acceptable use

Using the demo to message third parties without consent, to probe for vulnerabilities or to automate requests is prohibited. Usage limits apply per number and per origin.

Trademarks

WhatsApp and Meta are trademarks of Meta Platforms, Inc. Chassi is an independent product that uses Meta's official API.