Callcenter.js

Callcenter.js is an open-source MCP Server, CLI tool, and TypeScript API that enables programmatic phone calls via VoIP, powered by real-time AI voice agents such as Claude and OpenAI's GPT-4 voice. Users can issue natural language instructions (e.g., 'order pizza'), and the tool handles the conversation autonomously—including dialing, speaking, interpreting responses, and providing transcripts. It is primarily intended for experimentation and hobbyist use, not for professional deployment.