Vapi now supports SMS, letting its voice AI agents send and receive text messages during calls. Agents can reply to incoming texts live, switch from voice to text mid-conversation, and run fully text-based flows; SMS is currently available for Twilio only.
Vapi released the Vapi MCP Server, letting AI agent tools trigger real-time voice flows and outbound calls via function calling. It supports Claude Desktop integration and remote access over SSE, so users can ask Claude to place calls or schedule follow-ups in plain language. The server is available via @vapi-ai/mcp-server, locally or through a hosted SSE endpoint.