AI‑powered on‑chain payment and crypto payment infrastructure refers to the stack that lets AI models, autonomous agents, and Web3 apps originate, route and settle value directly on blockchain rails. This topic covers programmable payments (streaming, pay‑per‑call, conditional settlement), wallet and gas‑abstraction UX, native tokens for fees/incentives, and on‑chain governance and security controls that make machine-driven economic flows auditable and composable. Relevance (2026): as agentic AI and model marketplaces move from prototypes into production, agents increasingly act as economic actors that must pay for compute, oracle queries, and data. That shift raises demand for reliable crypto payment rails that support microtransactions, cross‑chain settlement, automated fee handling, and regulatory controls—while preserving decentralization and verifiability. Key components and representative tools: Morph — a protocol for programmable on‑chain payments and composable settlement; Bitget Wallet — a user wallet and payment surface that abstracts gas, supports custody and integrated payments for dApps and agents; BGB — an ecosystem token pattern used for fee settlement, incentives and governance within payment stacks. Complementary infrastructure includes decentralized AI platforms such as Tensorplex Labs (combining model development with DeFi primitives like staking and tokenized incentives), engineering and agent frameworks like LangChain (agent orchestration, stateful chains and payment hooks), and developer environments such as Warp that embed agent flows into developer tooling. Security and governance remain central: on‑chain policy enforcement, auditable payment traces, MPC key management, secure oracles, and AML/KYC bridging for fiat on‑ramps. Together these layers enable economically autonomous AI while exposing clear controls for operators and regulators, making the intersection of AI and crypto payments a practical foundation for next‑generation decentralized services.