What is x402? x402 is an open payment protocol developed by @coinbase that revives the HTTP 402 “Payment Required” status code. It allows AI agents or bots to pay for services in real time using crypto. Instead of relying on API keys or subscriptions, agents send a request, receive a 402 response with payment terms, settle the payment in USDC (on Base), and retry the request to access the resource. It’s chain agnostic and designed for seamless integration across services. @Cloudflare has partnered with Coinbase to support x402 natively within their agent and serverless platforms, making it easier to deploy pay-per-use services. x402 enables autonomous agents to access paid services directly. An AI agent can programmatically unlock premium resources by responding to real time payment prompts, all without human intervention or pre configured credentials. How does CodecFlow integrate or work with x402? CodecFlow doesn’t use x402 directly but enables it through the SDK. Developers building with CodecFlow can integrate payment logic into their robots using x402 or other methods. The SDK allows optional support for payments, whether crypto or traditional banking, so that robot services can be monetized natively. Much like how the MCP protocol unified tool communication for LLMs, x402 serves as a foundational payment layer. Once widely adopted, it could become a “Visa/Mastercard for robots,” enabling seamless economic interactions across platforms. There’s also future potential for CodecFlow itself to use x402 as a billing layer for its services. This would make the entire revenue pipeline transparent and onchain. While this isn’t implemented yet, it’s a viable route we will explore.