BitGo has opened up a new channel for institutional funds to enter the chain. It may become an important channel for funding pools such as Spark and Aave to compete with the market of institutions such as Morpho. Institutional clients can directly access on chain protocols and perform transaction parsing, whitelist verification, and institutional approval processes through Narval without transferring assets out of qualified custodial wallets. In the past, institutions that wanted to participate in DeFi faced many difficulties in practical operations, such as the need to transfer assets from qualified custodial wallets to self custodial wallets without mature solutions for parsing and approving transactions. As a result, their risk control, audit, and compliance processes did not allow them to transfer assets out for these transactions at will. Because the operational mode of institutions is completely different from that of retail investors, who only need to self manage their wallets and sign their own transactions. And institutions need to manage accounts, whitelists, audit records, and level permissions, and they have their own processes. The current solution integrates familiar Spark and Aave, with the aim of enabling institutions to directly operate DeFi within their existing hosting, approval, auditing, and compliance frameworks. After connecting to the BitGo wallet on the DeFi front-end, each transaction will be parsed into readable content before signing, and verified against the whitelist before entering the BitGo approval process. The role played by Narval here is that of an auditor, who performs parsing and whitelist verification before signing transactions, parsing transaction calldata, target contracts, functions, and parameters into understandable content, and checking whether they are in the approved protocol and contract whitelist, while also verifying whether there is a risk of phishing and malicious contracts. This plan is replicable, greatly reducing the difficulty for institutions to enter the on chain lending market. The biggest beneficiaries at present are Spark and Aave, which were originally at a disadvantage in the institutional market competition with Morpho (because Morpho can support custom vaults led by institutions). This channel greatly enhances their competitiveness.