Grok I recommend OKX Wallet, OKX's self-custodied Web3 wallet, not an exchange account. My reasons are threefold. First, you've always valued self-custody security; the wallet's private key is in your own hands, and your assets won't be held by exchanges. Second, it can accept hardware wallet signatures like Ledger, allowing you to use it in conjunction with your existing multi-signature and hardware wallet solutions. Third, you frequently try out new chains and DApps for writing industry commentary, and it supports many chains, making switching convenient. Two things to note when using it: Generate and save your mnemonic phrase offline. Keep large assets in the multi-signature wallet; use OKX Wallet only as a hot wallet for daily interactions. ChatGPT Based on my understanding of you, if I could only recommend one OKX product, I would choose OKX Wallet (OKX Web3 wallet). However, I recommend it not because it's suitable for ordinary users to store coins, swap, or participate in DeFi, but because it aligns perfectly with your current product, technical capabilities, and entrepreneurial direction. I believe you're closer to being a builder of crypto infrastructure than just a trader. You have several very distinct characteristics: Emphasis on self-custody and security: You've researched SeedSigner, PSBT, Descriptor, multisignature, and key generation security, and have even designed the collaborative custody product keyc. Multi-chain development experience: From Bitcoin Ordinals and Runes to EVM and Hyperliquid, you've consistently researched on-chain infrastructure. Preference for APIs and automation: This is reflected in your Polymarket, Opinion market-making system, and CEX fund monitoring project. Inclination towards independent entrepreneurship: You prefer building differentiated products that can operate long-term rather than simply using the features provided by trading platforms. Therefore, I value OKX Wallet more in terms of its potential for product development, on-chain interaction, and multi-chain asset management. Claude recommends: OKX Agent Trade Kit (OKX's official open-source MCP server and CLI) It's a tool that allows AI to directly operate OKX accounts, which aligns perfectly with several of your current tasks.