AgentGate
Privacy-first payment gateway that lets AI agents make stealth transactions.
Demo
About
AgentGate is a privacy-focused payment gateway built for AI agents. It lets an agent initiate USDC payments using only a recipient’s normal wallet address, while AgentGate resolves the recipient’s registered stealth identity and generates a fresh ERC-5564 stealth destination for each payment. The system is built on Base Sepolia and exposes an agent-friendly MCP interface through Bazantic, while keeping transaction signing isolated from the agent-facing API.
How it's made
AgentGate is built with TypeScript, Node.js, a REST API, Supabase/PostgreSQL, and Base Sepolia smart contracts. The payment engine prepares USDC transfers and integrates ERC-5564 stealth payments through a custom helper contract that calls the canonical ERC-5564 Announcer. Bazantic provides the agent-facing Gateway, MCP server, and Recipe, allowing Codex and other agents to interact with AgentGate using natural-language payment requests. A separate signer handles transaction execution so private keys never enter the Gateway or MCP layer. The frontend is built with React, Vite, and Tailwind for wallet connection and payment-plan testing.