x402-mvp.secondstate.io is a compact, order-focused API hosted on the Base network exposing 12 endpoints grouped under buy-echokit and echokit_diy. It provides predictable order-by-ID routes useful for programmatic order retrieval, management, and automation in DeFi/trading flows and developer tooling. The API is well suited for integrating purchase workflows, automating fulfillment and monitoring order state in development and production environments.