Day Zero 06 tutorial on building payment-gated servers using x402 on Stellar. Speaker demonstrates 30-line-of-code server that requires USDC payment to access premium data, and shows how to wire Claude with MCP to autonomously execute payments via Stellar transactions.
Stellar Day Zero 06 featured a technical walkthrough of the x402 protocol (HTTP 402 Payment Required) for monetizing APIs and data services. The speaker built a functional payment-gated server in 30 lines of JavaScript, configured USDC as the payment asset, and used OpenZeppelin's transaction sponsor for gas-free agent execution. Crucially, the session demonstrated integrating an MCP (Model Context Protocol) server with Claude, enabling the AI system to autonomously discover the payment requirement, execute a Stellar transaction, and retrieve gated content. This represents a new paradigm for machine-to-machine economic interaction at scale.