Come Grellard enhanced the LedgerHQ/wallet-api repository by developing new features for the Account Request API, focusing on improving onboarding flows and debugging visibility. They introduced a useCase parameter to the account.request API, allowing for more precise control over onboarding scenarios. Additionally, Come added an areCurrenciesFiltered flag to the wallet handler, which indicates whether currency filtering was applied during account requests, aiding in traceability and diagnostics. The work was implemented using TypeScript and leveraged full stack and API development skills. Over the month, Come delivered one feature with a targeted, well-scoped approach, demonstrating depth in API design and implementation.