Synthflow is a platform for building AI voice agents that hold phone conversations, for example for customer service, appointment booking and lead qualification. Companies configure agents in a no-code environment and connect them to their telephony and business systems. Synthflow is delivered as a cloud service.
The service is offered by AgentFlow AI GmbH, trading as Synthflow AI, with a Berlin address. No parent company outside the EU has been identified. On its website Synthflow lists both EU and US hosting. In its release notes of 1 May 2026, the company announces an EU cluster for new workspaces, with all data storage and compute kept inside the European Union. The cluster choice is permanent and applies only to new workspaces. An organisation that wants to keep data in the EU therefore has to choose the EU cluster when creating its workspace. Synthflow is not open source; the service runs only at the vendor.