VoiceGate

What is VoiceGate?

VoiceGate is a voice gateway built for autonomous AI agents rather than humans. Agents bring their own model and voice, and connect through a Python or Node SDK to place and receive real phone calls worldwide. Two things make it different: each agent carries a verifiable identity (KYA, aligned with ERC-8004), so the person on the other end can tell which agent is calling, and the agent settles usage itself, paying per call in USDC over x402 with no human in the billing loop. The open-source MIT SDK and the KYA trust layer are live today; the hosted call API is in private beta, from $0.06 per minute. It interoperates with standard telephony, USDC on Base and the x402 payment standard.

Key features

• Agent pays for each call itself in USDC over x402
• Verifiable agent identity on login (KYA, aligned with ERC-8004)
• Bring your own LLM and voice via webhook
• Real PSTN calls worldwide, inbound and outbound
• Open-source MIT SDK for Python and Node

Use cases

• Autonomous agent books appointments and confirms orders by phone
• Agent-to-agent voice calls where each side can verify who is calling
• 24/7 inbound phone reception handled by an agent
• Machine-to-machine calls billed without a human account or card
• Agent swarms that need a phone channel they can pay for themselves