On‑Chain AI Agent Platforms & Wallet‑Integrated Automation covers the emerging stack that lets autonomous AI agents hold state, act on-chain, and interact with users’ crypto wallets and payment rails. This space combines agent frameworks, decentralized compute/storage, AI tool/agent marketplaces, and wallet integration to enable tasks such as automated asset management, programmatic purchasing, and delegated workflows. Recent developments make the topic timely: banks and payments networks (for example, Visa’s 2025 Intelligent Commerce initiative) are building rails for agents to discover and securely purchase goods and services on behalf of users, while blockchain projects and vendors describe AI‑integrated smart wallet implementations (e.g., Aptos‑focused wallet work summarized by Fire Bee). At the same time, engineering and product tooling—from LangChain’s agent and stateful orchestration capabilities (LangGraph) to no‑code/low‑code platforms like StackAI and browser tools such as AgentGPT—lower the barrier to building, testing, and deploying agentic applications. Developer‑centric tools like Windsurf (formerly Codeium) provide agentic IDE workflows and multi‑model support for continuous agent development. Key considerations are interoperability, security and custody models, on‑chain vs off‑chain state, governance and compliance, and marketplace discovery/governance for agent components. Practical use cases include automated commerce, subscription and payment flows, programmable wallets, and enterprise automation. As of 2026‑03‑31, the field is shifting from experimental demos to production pilots driven by integrated payments, richer agent frameworks, and growing demand for governed, auditable agent behavior across decentralized infrastructures.