DGrid AI has launched its AI inference API, integrated with the x402 payment protocol, offering a seamless combination of payment logic and AI model invocation. This innovative API allows developers and AI agents to handle authorization, inference, and payment in a single request lifecycle, eliminating the need for managing API keys or pre-funding accounts. The API supports BNB Chain (BSC) for settlement, utilizing x402's micropayment capabilities for real-time on-chain transactions. The API is designed to support mainstream AI invocation methods, providing streaming responses and real-time usage feedback. It is suitable for applications such as AI agent model selection, inference billing, and intelligent agent orchestration. DGrid aims to dismantle traditional prepayment barriers, establishing a programmable payment infrastructure for an autonomous AI agent economy.