xAI launches production-grade voice agent platform, Voice Agent Builder

xAI has launched a beta version of Voice Agent Builder, a zero-code, production-grade voice agent platform based on the Grok Voice end-to-end speech model. Users can configure agents in just 2 minutes using natural language descriptions. The platform supports SIP access, real-time knowledge base retrieval, connectivity with tools like Google Calendar, and MCP integration. It offers over 80 built-in voice and brand cloning features, along with complete observability and guardrail mechanisms.